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</div> </a> <ul id="toc-Design-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Categories" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Categories"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Categories</span> </div> </a> <button aria-controls="toc-Categories-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Categories subsection</span> </button> <ul id="toc-Categories-sublist" class="vector-toc-list"> <li id="toc-Long_recoil" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Long_recoil"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Long recoil</span> </div> </a> <ul id="toc-Long_recoil-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Short_recoil" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Short_recoil"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Short recoil</span> </div> </a> <ul id="toc-Short_recoil-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Inertia" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Inertia"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Inertia</span> </div> </a> <ul id="toc-Inertia-sublist" class="vector-toc-list"> <li id="toc-Muzzle_booster" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Muzzle_booster"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3.1</span> <span>Muzzle booster</span> </div> </a> <ul id="toc-Muzzle_booster-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Automatic_revolvers" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Automatic_revolvers"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3.2</span> <span>Automatic revolvers</span> </div> </a> <ul id="toc-Automatic_revolvers-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Other_autoloading_systems" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Other_autoloading_systems"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Other autoloading systems</span> </div> </a> <ul id="toc-Other_autoloading_systems-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliography" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliography"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Bibliography</span> </div> </a> <ul id="toc-Bibliography-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> 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class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Recoil operation</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. 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interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9E%D1%82%D0%BA%D0%B0%D1%82%D0%BD%D0%B0_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0" title="Откатна система – Bulgarian" lang="bg" hreflang="bg" data-title="Откатна система" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/R%C3%BCcksto%C3%9Flader" title="Rückstoßlader – German" lang="de" hreflang="de" data-title="Rückstoßlader" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Rechargement_par_recul" title="Rechargement par recul – French" lang="fr" hreflang="fr" data-title="Rechargement par recul" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B0%98%EB%8F%99_%EC%9D%B4%EC%9A%A9%EC%8B%9D" title="반동 이용식 – Korean" lang="ko" hreflang="ko" data-title="반동 이용식" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B7%E3%83%A7%E3%83%BC%E3%83%88%E3%83%AA%E3%82%B3%E3%82%A4%E3%83%AB" title="ショートリコイル – Japanese" lang="ja" hreflang="ja" data-title="ショートリコイル" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Rekylmekanisme" title="Rekylmekanisme – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Rekylmekanisme" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Kr%C3%B3tki_odrzut_lufy" title="Krótki odrzut lufy – Polish" lang="pl" hreflang="pl" data-title="Krótki odrzut lufy" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/A%C3%A7%C3%A3o_de_recuo" title="Ação de recuo – Portuguese" lang="pt" hreflang="pt" data-title="Ação de recuo" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9E%D1%82%D0%B4%D0%B0%D1%87%D0%B0_%D1%81%D1%82%D0%B2%D0%BE%D0%BB%D0%B0" title="Отдача ствола – Russian" lang="ru" hreflang="ru" data-title="Отдача ствола" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Odklepanje_z_odsunom" title="Odklepanje z odsunom – Slovenian" lang="sl" hreflang="sl" data-title="Odklepanje z odsunom" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A2%D1%80%D0%B7%D0%B0%D1%9A%D0%B5_%D1%86%D0%B5%D0%B2%D0%B8" title="Трзање цеви – Serbian" lang="sr" hreflang="sr" data-title="Трзање цеви" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a 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id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Type of firearm action</div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output 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role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span"><div class="multiple-issues-text mw-collapsible"><b>This article has multiple issues.</b> Please help <b><a href="/wiki/Special:EditPage/Recoil_operation" title="Special:EditPage/Recoil operation">improve it</a></b> or discuss these issues on the <b><a href="/wiki/Talk:Recoil_operation" title="Talk:Recoil operation">talk page</a></b>. <small><i>(<a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove these messages</a>)</i></small> <div class="mw-collapsible-content"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-Lead_too_short plainlinks metadata ambox ambox-content ambox-lead_too_short" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Wiki_letter_w.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/6/6c/Wiki_letter_w.svg/40px-Wiki_letter_w.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/6/6c/Wiki_letter_w.svg/60px-Wiki_letter_w.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/6/6c/Wiki_letter_w.svg/80px-Wiki_letter_w.svg.png 2x" data-file-width="44" data-file-height="44" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article's <a href="/wiki/Wikipedia:Manual_of_Style/Lead_section#Length" title="Wikipedia:Manual of Style/Lead section">lead section</a> <b>may be too short to adequately <a href="/wiki/Wikipedia:Summary_style" title="Wikipedia:Summary style">summarize</a> the key points</b>.<span class="hide-when-compact"> Please consider expanding the lead to <a href="/wiki/Wikipedia:Manual_of_Style/Lead_section#Provide_an_accessible_overview" title="Wikipedia:Manual of Style/Lead section">provide an accessible overview</a> of all important aspects of the article.</span> <span class="date-container"><i>(<span class="date">January 2017</span>)</i></span></div></td></tr></tbody></table> </div> </div><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p><b>Recoil operation</b> is an operating mechanism used to implement <a href="/wiki/Locked_breech" title="Locked breech">locked-breech</a> autoloading <a href="/wiki/Firearm" title="Firearm">firearms</a>. Recoil operated firearms use the energy of <a href="/wiki/Recoil" title="Recoil">recoil</a> to cycle the action, as opposed to <a href="/wiki/Gas-operated_reloading" title="Gas-operated reloading">gas operation</a> or <a href="/wiki/Blowback_(firearms)" title="Blowback (firearms)">blowback operation</a> using the pressure of the propellant gas.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The earliest mention of recoil used to assist the loading of firearms is sometimes claimed to be in 1663 when an Englishman called Palmer proposed to employ either it or gases tapped along a barrel to do so.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> However no one has been able to verify this claim in recent times, although there is another automatic gun that dates from the same year, but its type and method of operation are unknown.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Recoil-operation, if it was invented in 1663, would then lie dormant until the 19th century, when a number of inventors started to patent designs featuring recoil operation; this was due to the fact that the integrated disposable <a href="/wiki/Cartridge_(firearms)" title="Cartridge (firearms)">cartridge</a> (both bullet and propellant in one easily interchangeable unit) made these designs viable. The earliest mention of recoil operation in the British patent literature is a patent by Joseph Whitworth filed in 1855 which proposed to use recoil to partially open the breech of a rifle, the breech then being manually pulled the rest of the way back by hand.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>Around this time, an American by the name of Regulus Pilon is sometimes stated to have patented in Britain a gun that used a limited form of recoil operation. He had three British patents related to firearms around the 1850s to the 1860s; however, all of them refer to a means of dampening recoil in firearms, which wasn't a new idea at the time, rather than true recoil operation. The next to mention recoil operation in the British patent literature is by Alexander Blakely in 1862, who clearly describes using the recoil of a fired cannon to open the breech.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>In 1864 after the <a href="/wiki/Second_Schleswig_War" title="Second Schleswig War">Second Schleswig War</a>, Denmark started a program intended to develop a gun that used the recoil of a fired shot to reload the firearm, though a working model wouldn't be produced until 1888.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Later in the 1870s, a Swedish captain called D. H. Friberg patented a design which introduced both flapper-locking and the fully automatic recoil operated machine gun.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> Furthermore, in 1875 a means of cocking a rifle through recoil was patented through the patent agent Frank Wirth by a German called Otto Emmerich.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Finally came Maxim's 1883 automatic recoil operated machine gun which introduced the modern age of automatic machine guns. </p> <div class="mw-heading mw-heading2"><h2 id="Design">Design</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=2" title="Edit section: Design"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox" style="clear: right; float:right;margin:0 0 1.5em 1.5em"><tbody><tr><th colspan="2" class="infobox-above" style="font-size:115%">External videos</th></tr><tr><td colspan="2" class="infobox-full-data" style="text-align: left"><span typeof="mw:File"><span><img alt="video icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Nuvola_apps_kaboodle.svg/16px-Nuvola_apps_kaboodle.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Nuvola_apps_kaboodle.svg/24px-Nuvola_apps_kaboodle.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Nuvola_apps_kaboodle.svg/32px-Nuvola_apps_kaboodle.svg.png 2x" data-file-width="128" data-file-height="128" /></span></span> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160603075016/https://www.youtube.com/watch?v=i-ggIXWLvuw">ANIMATION Browning AUTO 5 "cycle of one shoot"</a>, <a href="/wiki/YouTube" title="YouTube">YouTube</a></td></tr></tbody></table> <p>The same forces that cause the <a href="https://en.wiktionary.org/wiki/ejecta" class="extiw" title="wikt:ejecta">ejecta</a> of a firearm (the projectile(s), propellant gas, wad, <a href="/wiki/Sabot_(firearms)" title="Sabot (firearms)">sabot</a>, etc.) to move down the <a href="/wiki/Barrel_(firearms)" class="mw-redirect" title="Barrel (firearms)">barrel</a> also cause all or a portion of the firearm to move in the opposite direction. The result is required by the <a href="/wiki/Conservation_of_momentum" class="mw-redirect" title="Conservation of momentum">conservation of momentum</a> such that the ejecta momentum and recoiling momentum are equal. These <a href="/wiki/Momentum" title="Momentum">momenta</a> are calculated by: </p> <dl><dd>Ejecta mass × ejecta velocity = recoiling mass × recoil velocity</dd></dl> <p>The <a href="/wiki/Gun_barrel" title="Gun barrel">barrel</a> is a moving part of the action in recoil-operated firearms. In non-recoil-operated firearms, it is generally the entire firearm that recoils. However, in recoil-operated firearms, only a portion of the firearm recoils while <a href="/wiki/Inertia" title="Inertia">inertia</a> holds another portion motionless relative to a mass such as the ground, a ship's gun mount, or a human holding the firearm. The moving and the motionless masses are coupled by a spring that absorbs the recoil energy as it is compressed by the movement and then expands providing energy for the rest of the operating cycle. </p><p>Since there is a minimum momentum required to operate a recoil-operated firearm's action, the <a href="/wiki/Cartridge_(firearms)" title="Cartridge (firearms)">cartridge</a> must generate sufficient recoil to provide that momentum. Therefore, recoil-operated firearms work best with a cartridge that yields a momentum approximately equal to that for which the mechanism was optimized. For example, the <a href="/wiki/M1911" class="mw-redirect" title="M1911">M1911</a> design with factory springs is optimized for a 230-grain (15 g) bullet at factory velocity. Changes in caliber or drastic changes in bullet weight and/or velocity require modifications to spring weight or slide mass to compensate. Similarly the use of <a href="/wiki/Blank_ammunition" class="mw-redirect" title="Blank ammunition">blank ammunition</a> will typically cause the mechanism not to work correctly, unless <a href="/wiki/Blank-firing_attachment" class="mw-redirect" title="Blank-firing attachment">a device</a> is fitted to boost the recoil. </p> <div class="mw-heading mw-heading2"><h2 id="Categories">Categories</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=3" title="Edit section: Categories"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Recoil-operated designs are broadly categorized by how the parts move under recoil. </p> <div class="mw-heading mw-heading3"><h3 id="Long_recoil">Long recoil</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=4" title="Edit section: Long recoil"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Recoil_operation_key.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Recoil_operation_key.png/220px-Recoil_operation_key.png" decoding="async" width="220" height="69" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/e/e6/Recoil_operation_key.png 1.5x" data-file-width="294" data-file-height="92" /></a><figcaption>Key for recoil operation diagrams. Gun fires to the right.</figcaption></figure> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Long_recoil_operation.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/27/Long_recoil_operation.png/220px-Long_recoil_operation.png" decoding="async" width="220" height="146" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/27/Long_recoil_operation.png/330px-Long_recoil_operation.png 1.5x, //upload.wikimedia.org/wikipedia/commons/2/27/Long_recoil_operation.png 2x" data-file-width="370" data-file-height="245" /></a><figcaption>Block diagram of long recoil operation cycle.</figcaption></figure> <p>Long recoil operation is found primarily in <a href="/wiki/Shotgun" title="Shotgun">shotguns</a>, particularly ones based on <a href="/wiki/John_Browning" title="John Browning">John Browning</a>'s <a href="/wiki/Browning_Auto-5" title="Browning Auto-5">Auto-5</a> action. In 1885 a locked breech, long recoil action was patented by the Britons Schlund and Arthur.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> In a long recoil action, the barrel and bolt remain locked together during recoil, compressing the recoil springs. Following this rearward movement, the bolt locks to the rear and the barrel is forced forward by its spring. The bolt is held in position until the barrel returns completely forward during which time the spent cartridge has been extracted and ejected, and a new shell has been positioned from the magazine. The bolt is released and forced closed by its recoil spring, chambering a fresh round. </p><p>The long recoil system was invented in the late 19th century and dominated the automatic shotgun market for more than half that century before it was supplanted by new <a href="/wiki/Gas-operated_reloading" title="Gas-operated reloading">gas-operated</a> designs. While Browning halted production of the Auto-5 design in 1999, <a href="/wiki/Franchi_(firearms)" title="Franchi (firearms)">Franchi</a> still makes a long-recoil–operated shotgun line, the <a href="/wiki/Franchi_AL-48" title="Franchi AL-48">AL-48</a>, which shares both the original Browning action design, and the "humpbacked" appearance of the original Auto-5. Other weapons based on the Browning system were the <a href="/wiki/Remington_Model_8" title="Remington Model 8">Remington Model 8</a> <a href="/wiki/Semi-automatic_rifle" title="Semi-automatic rifle">semi-automatic rifle</a> (1906), the Remington Model 11 & "The Sportsman" model (a model 11 with only a two-shell magazine) shotguns, the <a href="/wiki/Frommer_Stop" title="Frommer Stop">Frommer Stop</a> line of pistols (1907), and the <a href="/wiki/Chauchat" title="Chauchat">Chauchat</a> automatic rifle (1915). </p> <dl><dt>Cycle diagram explanation</dt></dl> <ol><li>Ready to fire position. Bolt is locked to barrel, both are fully forward.</li> <li>Recoil of firing forces bolt and barrel fully to the rear, compressing the return springs for both.</li> <li>Bolt is held to rear, while barrel unlocks and returns to battery under spring force. Fired round is ejected.</li> <li>Bolt returns under spring force, loads new round. Barrel locks in place as it returns to battery.</li></ol> <div class="mw-heading mw-heading3"><h3 id="Short_recoil">Short recoil<span class="anchor" id="Short_recoil"></span></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=5" title="Edit section: Short recoil"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:P12.45_barrel.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/79/P12.45_barrel.jpg/220px-P12.45_barrel.jpg" decoding="async" width="220" height="91" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/79/P12.45_barrel.jpg/330px-P12.45_barrel.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/79/P12.45_barrel.jpg/440px-P12.45_barrel.jpg 2x" data-file-width="582" data-file-height="240" /></a><figcaption>The barrel from a Para Ordnance P12.45, an M1911-derived design which uses short recoil operation. Under recoil, the barrel moves back in the frame, rotating the link (shown in the unlocked position), which causes the rear of the barrel to tip down and disengage from the slide.</figcaption></figure> <p>The short recoil action dominates the world of <a href="/wiki/Centerfire" class="mw-redirect" title="Centerfire">centerfire</a> <a href="/wiki/Semi-automatic_pistol" title="Semi-automatic pistol">semi-automatic pistols</a>, being found in nearly all weapons chambered for high-pressure pistol cartridges of <a href="/wiki/9%C3%9719mm_Parabellum" title="9×19mm Parabellum">9×19mm Parabellum</a> and larger, while low-pressure pistol cartridges of <a href="/wiki/.380_ACP" title=".380 ACP">.380 ACP</a> and smaller generally use the <a href="/wiki/Blowback_(firearms)" title="Blowback (firearms)">blowback</a> method of operation. Short recoil operation differs from long recoil operation in that the barrel and bolt recoil together only a short distance before they unlock and separate. The barrel stops quickly, and the bolt continues rearward, compressing the recoil spring and performing the automated extraction and feeding process. During the last portion of its forward travel, the bolt locks into the barrel and pushes the barrel back into battery. </p><p>The method of locking and unlocking the barrel differentiates the wide array of short recoil designs. Most common are the John Browning tilting barrel designs based on either the swinging link and locking lugs as used in the <a href="/wiki/M1911_Colt_pistol" class="mw-redirect" title="M1911 Colt pistol">M1911</a> pistol or the linkless cam design used in the <a href="/wiki/Browning_Hi-Power" title="Browning Hi-Power">Hi Power</a> and <a href="/wiki/CZ_75" title="CZ 75">CZ 75</a>. Other designs are the locking block design found in the <a href="/wiki/Walther_P38" title="Walther P38">Walther P38</a> and <a href="/wiki/Beretta_92" title="Beretta 92">Beretta 92</a>, rollers in the <a href="/wiki/MG42" class="mw-redirect" title="MG42">MG42</a>, or a rotating barrel used in the <a href="/wiki/Beretta_8000" title="Beretta 8000">Beretta 8000</a> and others. An unusual variant is the <a href="/wiki/Blowback_(firearms)#Toggle-delayed" title="Blowback (firearms)">toggle bolt</a> design of the <a href="/wiki/Borchardt_C-93" title="Borchardt C-93">Borchardt C-93</a> and its descendant, the <a href="/wiki/Luger_pistol" title="Luger pistol">Luger pistol</a>. </p><p>While the short recoil design is most common in pistols, the very first short-recoil–operated firearm was also the first <a href="/wiki/Machine_gun" title="Machine gun">machine gun</a>, the <a href="/wiki/Maxim_gun" title="Maxim gun">Maxim gun</a>. It used a toggle bolt similar to the one Borchardt later adapted to pistols. Vladimirov also used the short recoil principle in the Soviet <a href="/wiki/KPV_heavy_machine_gun" title="KPV heavy machine gun">KPV-14.5</a> heavy machine gun which has been in service with the Russian military and Middle Eastern armed forces since 1949. Melvin Johnson also used the short recoil principle in his <a href="/wiki/M1941_Johnson_machine_gun" title="M1941 Johnson machine gun">M1941 Johnson machine gun</a> and <a href="/wiki/M1941_Johnson_rifle" title="M1941 Johnson rifle">M1941</a> rifle, other rifles using short recoil are LWRCI SMG 45<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>and LoneStar Future Weapons <a href="/w/index.php?title=RM-277R&action=edit&redlink=1" class="new" title="RM-277R (page does not exist)">RM-277R</a>.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <dl><dt>Cycle diagram explanation</dt></dl> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Short_recoil_operation.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Short_recoil_operation.png/220px-Short_recoil_operation.png" decoding="async" width="220" height="173" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Short_recoil_operation.png/330px-Short_recoil_operation.png 1.5x, //upload.wikimedia.org/wikipedia/commons/3/3f/Short_recoil_operation.png 2x" data-file-width="372" data-file-height="293" /></a><figcaption>Block diagram of short recoil operation cycle. See diagram key above.</figcaption></figure> <ol><li>Ready to fire position. Bolt is locked to barrel, both are fully forward.</li> <li>Upon firing, bolt and barrel recoil backwards a short distance while locked together. Near the end of the barrel travel, the bolt and barrel unlock.</li> <li>The barrel stops, but the unlocked bolt continues to move to the rear, ejecting the empty shell and compressing the recoil spring.</li> <li>The bolt returns forward under spring force, loading a new round into the barrel.</li> <li>Bolt locks into barrel, and forces barrel to return to battery.</li></ol> <div class="mw-heading mw-heading3"><h3 id="Inertia">Inertia</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=6" title="Edit section: Inertia"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>An alternative design concept for recoil-operated firearms is the inertia operated system, the first practical use of it being the <a href="/wiki/Sj%C3%B6gren_shotgun" title="Sjögren shotgun">Sjögren shotgun</a>, developed by Carl Axel Theodor Sjögren in the early 1900s, a Swedish engineer who was awarded a number of patents for his inertia operated design between 1900 and 1908 and sold about 5,000 automatic shotguns using the system in 1908–1909.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> In a reversal of the other designs, some inertia systems use nearly the entire firearm as the recoiling component, with only the bolt remaining stationary during firing. Because of this, the inertia system is only applied to heavily recoiling firearms, particularly shotguns. A similar system using inertia operation was then developed by Paolo Benelli in the early 1980s and patented in 1986.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> With the exception of Sjögren's shotguns and rifles in the early 1900s, all inertia-operated firearms made until 2012 were either made by <a href="/wiki/Benelli_(firearms)" class="mw-redirect" title="Benelli (firearms)">Benelli</a> or used a design licensed from Benelli, such as the Franchi Affinity. Then the <a href="/wiki/Browning_Arms_Company" title="Browning Arms Company">Browning Arms Company</a> introduced the inertia-operated A5 (trademarked as Kinematic Drive) as successor to the long-recoil operated <a href="/wiki/Browning_Auto-5" title="Browning Auto-5">Auto-5</a>. Both the Benelli and Browning systems are based on a rotating locking bolt, similar to that used in many <a href="/wiki/Gas-operated_reloading" title="Gas-operated reloading">gas-operated</a> firearms. </p><p>Before firing, the bolt body is separated from the locked bolt head by a stiff spring. As the shotgun recoils after firing, inertia of the bolt body is large enough for it to remain stationary while the recoiling gun and locked bolt head move rearward. This movement compresses the spring between the bolt head and bolt body, storing the energy required to cycle the action. Since the spring can only be compressed a certain amount, this limits the amount of force the spring can absorb, and provides an inherent level of self-regulation to the action, allowing a wide range of <a href="/wiki/Shotshell" class="mw-redirect" title="Shotshell">shotshells</a> to be used, from standard to magnum loads, as long as they provide the minimum recoil level to compress the spring. Note that the shotgun must be free to recoil for this to work—the compressibility of the shooter's body is sufficient to allow this movement, but firing the shotgun from a secure position in a rest or with the stock against the ground will not allow it to recoil sufficiently to operate the mechanism. Likewise, care must be exercised when modifying weapons of this type (e.g. addition of extended magazines or ammunition storage on the stock), as any sizable increase in weapon mass can reduce the work done from recoil below that required to cycle the action. </p> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Inertia_op_v2.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Inertia_op_v2.png/220px-Inertia_op_v2.png" decoding="async" width="220" height="249" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/c/cc/Inertia_op_v2.png 1.5x" data-file-width="300" data-file-height="339" /></a><figcaption>Block diagram of inertia operation cycle, see diagram key above</figcaption></figure> <p>As the recoil spring returns to its uncompressed state, it pushes the bolt body backward with sufficient force to cycle the action. The bolt body unlocks and retracts the bolt head, extracts and ejects the cartridge, cocks the hammer, and compresses the return spring. Once the bolt reaches the end of its travel, the return spring provides the force to chamber the next round from the magazine, and lock the bolt closed. </p> <dl><dt>Cycle diagram explanation</dt></dl> <ol><li>Ready to fire position. Bolt is locked to barrel, both are fully forward.</li> <li>Upon firing, the firearm recoils backwards into the shooter's body. The inertial mass remains stationary, compressing a spring. The bolt remains locked to the barrel, which in turn is rigidly attached to the frame.</li> <li>The compressed spring forces the inertial mass rearwards until it transfers its momentum to the bolt.</li> <li>The bolt unlocks and moves to the rear, ejecting the fired round and compressing the return spring.</li> <li>The bolt returns to battery under spring force, loading a new round and locking into place.</li> <li>The shooter recovers from the shot, moving the firearm forward into position for the next shot.</li></ol> <div class="mw-heading mw-heading4"><h4 id="Muzzle_booster">Muzzle booster</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=7" title="Edit section: Muzzle booster"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Muzzle_booster" title="Muzzle booster">Muzzle booster</a></div> <p>Some short-recoil–operated firearms, such as the German <a href="/wiki/MG_42" title="MG 42">MG 42</a> and <a href="/wiki/Rheinmetall_MG_3" class="mw-redirect" title="Rheinmetall MG 3">MG 3</a>, use a mechanism at the muzzle to extract some energy from the escaping powder gases to push the barrel backwards, in addition to the recoil energy. This boost provides higher rates of fire and/or more reliable operation. This type of mechanism is also found in some <a href="/wiki/Suppressor" class="mw-redirect" title="Suppressor">suppressors</a> used on short recoil firearms, under the name <i>gas assist</i> or <i>Nielsen device</i>, where it is used to compensate for the extra mass the suppressor adds to the recoiling parts both by providing a boost and decoupling some of the suppressor's mass from the firearm's recoiling parts. </p><p>Muzzle boosters are also used on some recoil-operated firearms' <a href="/wiki/Blank-firing_attachment" class="mw-redirect" title="Blank-firing attachment">blank-firing attachments</a> to normalize the recoil force of a blank round (with no projectile) with the greater force of a live round, in order to allow the mechanism to cycle properly. </p> <div class="mw-heading mw-heading4"><h4 id="Automatic_revolvers">Automatic revolvers</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=8" title="Edit section: Automatic revolvers"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Several <a href="/wiki/Revolver" title="Revolver">revolvers</a> use recoil to cock the hammer and advance the cylinder. In these designs, the barrel and cylinder are affixed to an upper frame which recoils atop a sub-frame. As the upper receiver recoils, the cylinder is advanced and hammer cocked, functions that are usually done manually. Notable examples are the <a href="/wiki/Webley%E2%80%93Fosbery_Automatic_Revolver" title="Webley–Fosbery Automatic Revolver">Webley–Fosbery</a> and <a href="/wiki/Mateba_Autorevolver" title="Mateba Autorevolver">Mateba</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Other_autoloading_systems">Other autoloading systems</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=9" title="Edit section: Other autoloading systems"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Other autoloading systems are: </p> <ul><li><a href="/wiki/Delayed_blowback" class="mw-redirect" title="Delayed blowback">Delayed blowback</a> firearms uses an operation that delays the bolt opening until the gas pressure is at a safe level to extract.</li> <li><a href="/wiki/Blow_forward" title="Blow forward">Blow forward</a> firearms lack the use of a bolt but instead a moving barrel that gets dragged forward by the bullet until it leaves the barrel to cycle its action.</li> <li><a href="/wiki/Blowback_(arms)" class="mw-redirect" title="Blowback (arms)">Blowback</a> firearms use the expanding gas impinging on the cartridge itself to push the bolt of the firearm rearward.</li> <li><a href="/wiki/Gas-operated_reloading" title="Gas-operated reloading">Gas-operated</a> firearms tap off a small amount of the expanding gas to power the moving parts of the action.</li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=10" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Bump_stock" title="Bump stock">Bump stock</a></li> <li><a href="/wiki/Slamfire" title="Slamfire">Slamfire</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=11" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFHatcher1948" class="citation book cs1">Hatcher, Julian S. (1 January 1948). <i>Hatcher's Notebook, A Standard Reference Book for, Shooters, Gunsmiths, Ballistics, Historians, Hunter and Collectors</i>. Martino Fine Books. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781614272830" title="Special:BookSources/9781614272830"><bdi>9781614272830</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Hatcher%27s+Notebook%2C+A+Standard+Reference+Book+for%2C+Shooters%2C+Gunsmiths%2C+Ballistics%2C+Historians%2C+Hunter+and+Collectors&rft.pub=Martino+Fine+Books&rft.date=1948-01-01&rft.isbn=9781614272830&rft.aulast=Hatcher&rft.aufirst=Julian+S.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20230326025336/http://www.ibiblio.org/hyperwar/USN/ref/MG/I/MG-1.html">"HyperWar: The Machine Gun (Vol. /Part )"</a>. Archived from <a rel="nofollow" class="external text" href="https://www.ibiblio.org/hyperwar/USN/ref/MG/I/MG-1.html">the original</a> on March 26, 2023.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=HyperWar%3A+The+Machine+Gun+%28Vol.+%2FPart+%29&rft_id=https%3A%2F%2Fwww.ibiblio.org%2Fhyperwar%2FUSN%2Fref%2FMG%2FI%2FMG-1.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBirch1756" class="citation web cs1">Birch, Thomas (1756). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=RSpAAQAAMAAJ&q=%22And+Bullet+Within+Was+Made+To+Charge+The+Piece%22&pg=PA396">"The History of the Royal Society of London for Improving of Natural Knowledge, from Its First Rise: In which the Most Considerable of Those Papers Communicated to the Society, which Have Hitherto Not Been Published, are Inserted in Their Proper Order, as a Supplement to the Philosophical Transactions"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=The+History+of+the+Royal+Society+of+London+for+Improving+of+Natural+Knowledge%2C+from+Its+First+Rise%3A+In+which+the+Most+Considerable+of+Those+Papers+Communicated+to+the+Society%2C+which+Have+Hitherto+Not+Been+Published%2C+are+Inserted+in+Their+Proper+Order%2C+as+a+Supplement+to+the+Philosophical+Transactions&rft.date=1756&rft.aulast=Birch&rft.aufirst=Thomas&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DRSpAAQAAMAAJ%26q%3D%2522And%2BBullet%2BWithin%2BWas%2BMade%2BTo%2BCharge%2BThe%2BPiece%2522%26pg%3DPA396&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPatent_OfficeWoodcroft1859" class="citation web cs1">Patent Office, Great Britain; Woodcroft, Bennet (1859). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=P1wWAAAAYAAJ&q=Whitworth&pg=PA163">"Abridgments of the Specifications Relating to Fire-arms and Other Weapons, Ammunition, and Accoutrements: A.D. 1588-1858]-Pt. 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(1978). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/completeillustra00ianv"><i>The complete illustrated encyclopedia of the world's firearms</i></a></span>. A & W Publishers. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780894790317" title="Special:BookSources/9780894790317"><bdi>9780894790317</bdi></a>. <q>Friberg.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+complete+illustrated+encyclopedia+of+the+world%27s+firearms&rft.pub=A+%26+W+Publishers&rft.date=1978&rft.isbn=9780894790317&rft.aulast=Hogg&rft.aufirst=Ian+V.&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fcompleteillustra00ianv&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="https://babel.hathitrust.org/cgi/pt?id=hvd.hl592r&view=1up&seq=978&q1=Wirth"><i>Patents for inventions. Abridgments of specifications relating to fire-arms, ammunition, &c. Division I. Fire-arms and similar weapons ... Printed by order of the Commissioners of patents</i></a>. Published and sold at the Commissioners of patents sale department.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Patents+for+inventions.+Abridgments+of+specifications+relating+to+fire-arms%2C+ammunition%2C+%26c.+Division+I.+Fire-arms+and+similar+weapons+...+Printed+by+order+of+the+Commissioners+of+patents&rft.pub=Published+and+sold+at+the+Commissioners+of+patents+sale+department&rft_id=https%3A%2F%2Fbabel.hathitrust.org%2Fcgi%2Fpt%3Fid%3Dhvd.hl592r%26view%3D1up%26seq%3D978%26q1%3DWirth&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCarman2015" class="citation book cs1">Carman, W. Y. (5 October 2015). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=xumoCgAAQBAJ&q=Schlund+Arthur+Recoil&pg=PT103"><i>A History of Firearms: From Earliest Times to 1914</i></a>. Routledge. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781317411154" title="Special:BookSources/9781317411154"><bdi>9781317411154</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=A+History+of+Firearms%3A+From+Earliest+Times+to+1914&rft.pub=Routledge&rft.date=2015-10-05&rft.isbn=9781317411154&rft.aulast=Carman&rft.aufirst=W.+Y.&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DxumoCgAAQBAJ%26q%3DSchlund%2BArthur%2BRecoil%26pg%3DPT103&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20240811193846/https://www.lwrci.com/SMG-45-Pistol_p_268.html">"SMG 45 Pistol"</a>. 2024-08-11. Archived from <a rel="nofollow" class="external text" href="https://www.lwrci.com/SMG-45-Pistol_p_268.html">the original</a> on 2024-08-11<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-08-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=SMG+45+Pistol&rft.date=2024-08-11&rft_id=https%3A%2F%2Fwww.lwrci.com%2FSMG-45-Pistol_p_268.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20240718015009/https://www.youtube.com/watch?v=1IDrmo_1-Ig">"This Rifle Fires Plastic Ammo; The US Army Almost Adopted it. - YouTube"</a>. <i><a href="/wiki/YouTube" title="YouTube">YouTube</a></i>. 2024-07-18. 05:02. Archived from <a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=1IDrmo_1-Ig">the original</a> on 2024-07-18<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-08-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=YouTube&rft.atitle=This+Rifle+Fires+Plastic+Ammo%3B+The+US+Army+Almost+Adopted+it.+-+YouTube&rft.pages=05%3A02&rft.date=2024-07-18&rft_id=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D1IDrmo_1-Ig&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20160319094239/http://www.jaktojagare.se/kategorier/vapen-och-utrustning/sjogrens-halvautomat---en-udda-klassiker/">"<i>Sjögrens halvautomat - en udda klassiker"</i></a><i> [Sjögren's semi-automatic - an odd classic]. </i>Jakt och Jägare<i>. 27 April 2010. Archived from <a rel="nofollow" class="external text" href="http://www.jaktojagare.se/kategorier/vapen-och-utrustning/sjogrens-halvautomat---en-udda-klassiker/">the original</a> on March 19, 2016<span class="reference-accessdate">. Retrieved <span class="nowrap">31 August</span> 2016</span>.</i></cite><i><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Jakt+och+J%C3%A4gare&rft.atitle=Sj%C3%B6grens+halvautomat+-+en+udda+klassiker&rft.date=2010-04-27&rft_id=http%3A%2F%2Fwww.jaktojagare.se%2Fkategorier%2Fvapen-och-utrustning%2Fsjogrens-halvautomat---en-udda-klassiker%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></i></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20220824104743/https://www.forgottenweapons.com/wp-content/uploads/manuals/Sjogren1908.PDF">Articles in <i>Engineering</i>, June 1908</a> Forgottenweapons.com. Retrieved 31 August 2016.</span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><span><a rel="nofollow" class="external text" href="https://patents.google.com/patent/US4604942">U.S. patent 4,604,942</a></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Bibliography">Bibliography</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=12" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFArmy_Materiel_Command1970" class="citation cs2">Army Materiel Command (February 5, 1970), <a rel="nofollow" class="external text" href="https://web.archive.org/web/20130408133443/http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD868578"><i>Automatic Weapons</i></a>, Engineering Design Handbook: Guns Series, United States Army Materiel Command, AMCP 706-260, archived from <a rel="nofollow" class="external text" href="http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD868578">the original</a> on April 8, 2013</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Automatic+Weapons&rft.series=Engineering+Design+Handbook%3A+Guns+Series&rft.pub=United+States+Army+Materiel+Command&rft.date=1970-02-05&rft.au=Army+Materiel+Command&rft_id=http%3A%2F%2Fwww.dtic.mil%2Fcgi-bin%2FGetTRDoc%3FAD%3DAD868578&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARecoil+operation" class="Z3988"></span></li></ul> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Recoil_operation&action=edit&section=13" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output 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src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Recoil_operation" class="extiw" title="commons:Category:Recoil operation">Recoil operation</a></span>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20230410101729/https://www.youtube.com/watch?v=PdoC8z0r08k">How Does it Work: Long Recoil</a> Forgotten Weapons</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20230410101205/https://www.youtube.com/watch?v=HZcgZ4aq8Ew">How Does it Work: Short Recoil</a> Forgotten Weapons</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20220228223413/https://science.howstuffworks.com/machine-gun.htm#pt5">Recoil operation</a>, Animations and explanations of (short) recoil operation principle at howstuffworks.com</li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist 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<ul><li><a href="/wiki/Category:Lists_of_firearms" title="Category:Lists of firearms">lists</a></li></ul></li> <li><a href="/wiki/Gun" title="Gun">Gun</a></li> <li><a href="/wiki/History_of_the_firearm" title="History of the firearm">History</a></li> <li><a href="/wiki/Gun_safety" title="Gun safety">Safety</a></li> <li><a href="/wiki/War" title="War">War</a></li> <li><a href="/wiki/Weapon" title="Weapon">Weapon</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible expanded navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Types_of_firearms" style="font-size:114%;margin:0 4em"><a href="/wiki/Firearm#Types" title="Firearm">Types of firearms</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Breechloader" title="Breechloader">Breechloader</a> versus <a href="/wiki/Muzzleloader" title="Muzzleloader">muzzleloader</a></li> <li><a href="/wiki/Combination_guns" class="mw-redirect" title="Combination guns">Combination</a></li> <li><a href="/wiki/Elephant_gun" title="Elephant gun">Elephant</a></li> <li><a href="/wiki/Flare_gun" title="Flare gun">Flare gun</a></li> <li><a href="/wiki/Line_thrower" title="Line thrower">Line thrower</a></li> <li><a href="/wiki/Long_gun" title="Long gun">Long gun</a> <ul><li><a href="/wiki/Carbine" title="Carbine">Carbine</a></li> <li><a href="/wiki/Musket" title="Musket">Musket</a></li> <li><a href="/wiki/Takedown_gun" title="Takedown gun">Takedown</a></li></ul></li> <li><a href="/wiki/Multiple-barrel_firearm" title="Multiple-barrel firearm">Multiple-barrel</a> (<a href="/wiki/List_of_multiple-barrel_firearms" title="List of multiple-barrel firearms">list</a>)</li> <li><a href="/wiki/Needlegun" title="Needlegun">Needler</a></li> <li><a href="/wiki/Net_gun" title="Net gun">Net gun</a></li> <li><a href="/wiki/Pen_gun" title="Pen gun">Pen gun</a></li> <li><a href="/wiki/Riot_gun" title="Riot gun">Riot gun</a></li> <li><a href="/wiki/Rotary_cannon" title="Rotary cannon">Rotary</a></li> <li><a href="/wiki/Single-shot" title="Single-shot">Single-shot</a></li> <li><a href="/wiki/Sleeve_gun" title="Sleeve gun">Sleeve gun</a></li> <li><a href="/wiki/Smoothbore" title="Smoothbore">Smoothbore</a></li> <li><a href="/wiki/Spring-gun" title="Spring-gun">Spring-gun</a></li> <li><a href="/wiki/Underwater_firearm" title="Underwater firearm">Underwater firearm</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Handgun" title="Handgun">Handguns</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cane_gun" title="Cane gun">Cane gun</a></li> <li><a href="/wiki/Derringer" title="Derringer">Derringer</a></li> <li><a href="/wiki/Duelling_pistol" title="Duelling pistol">Duelling</a></li> <li><a href="/wiki/Pistol" title="Pistol">Pistol</a> <ul><li><a href="/wiki/List_of_pistols" title="List of pistols">list</a></li></ul></li> <li><a href="/wiki/Machine_pistol" title="Machine pistol">Machine</a></li> <li><a href="/wiki/Pepper-box" title="Pepper-box">Pepper-box</a></li> <li><a href="/wiki/Pocket_pistol" title="Pocket pistol">Pocket</a></li> <li><a href="/wiki/Revolver" title="Revolver">Revolver</a> <ul><li><a href="/wiki/List_of_revolvers" title="List of revolvers">list</a></li></ul></li> <li><a href="/wiki/Semi-automatic_pistol" title="Semi-automatic pistol">Semi-automatic pistol</a> <ul><li><a href="/wiki/List_of_semi-automatic_pistols" title="List of semi-automatic pistols">list</a></li></ul></li> <li><a href="/wiki/Pistol_caliber_carbine" class="mw-redirect" title="Pistol caliber carbine">Pistol caliber</a> <ul><li><a href="/wiki/Personal_defence_weapon" class="mw-redirect" title="Personal defence weapon">Personal defence weapon</a></li> <li><a href="/wiki/Submachine_gun" title="Submachine gun">Submachine gun</a></li></ul></li> <li><a href="/wiki/Starting_pistol" title="Starting pistol">Starting</a></li> <li><a href="/wiki/Wallet_gun" title="Wallet gun">Wallet gun</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Rifle" title="Rifle">Rifles</a> (<a href="/wiki/List_of_rifles" title="List of rifles">list</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0;;wide"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anti-materiel_rifle" title="Anti-materiel rifle">Anti-materiel</a></li> <li><a href="/wiki/Anti-tank_rifle" title="Anti-tank rifle">Anti-tank</a></li> <li><a href="/wiki/Assault_rifle" title="Assault rifle">Assault</a> <ul><li><a href="/wiki/List_of_assault_rifles" title="List of assault rifles">list</a></li></ul></li> <li><a href="/wiki/Automatic_rifle" title="Automatic rifle">Automatic</a></li> <li><a href="/wiki/Battle_rifle" title="Battle rifle">Battle</a> <ul><li><a href="/wiki/List_of_battle_rifles" title="List of battle rifles">list</a></li></ul></li> <li><a href="/wiki/Carbine_rifle" class="mw-redirect" title="Carbine rifle">Carbine</a> <ul><li><a href="/wiki/List_of_carbines" title="List of carbines">list</a></li></ul></li> <li><a href="/wiki/Double_rifle" title="Double rifle">Double</a></li> <li><a href="/wiki/Hunting_rifle" class="mw-redirect" title="Hunting rifle">Hunting</a> <ul><li><a href="/wiki/Buffalo_rifle" title="Buffalo rifle">Buffalo</a></li> <li><a href="/wiki/Elephant_rifle" class="mw-redirect" title="Elephant rifle">Elephant</a></li> <li><a href="/wiki/Express_rifle" class="mw-redirect" title="Express rifle">Express</a></li> <li><a href="/wiki/Punt_gun" title="Punt gun">Punt</a></li> <li><a href="/wiki/Varmint_rifle" title="Varmint rifle">Varmint</a></li></ul></li> <li><a href="/wiki/Designated_marksman_rifle" title="Designated marksman rifle">Marksman</a></li> <li><a href="/wiki/Rifling" title="Rifling">Rifling</a> <ul><li><a href="/wiki/Polygonal_rifling" title="Polygonal rifling">Polygonal</a></li></ul></li> <li><a href="/wiki/Repeating_rifle" title="Repeating rifle">Repeating</a></li> <li><a href="/wiki/Sniper_rifle" title="Sniper rifle">Sniper</a> <ul><li><a href="/wiki/List_of_sniper_rifles" title="List of sniper rifles">list</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;font-weight:normal;"><a href="/wiki/Machine_gun" title="Machine gun">Machine guns</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/General_purpose_machine_gun" class="mw-redirect" title="General purpose machine gun">General purpose</a></li> <li><a href="/wiki/Light_machine_gun" title="Light machine gun">Light</a></li> <li><a href="/wiki/Medium_machine_gun" title="Medium machine gun">Medium</a></li> <li><a href="/wiki/Heavy_machine_gun" title="Heavy machine gun">Heavy</a></li> <li><a href="/wiki/Squad_automatic_weapon" title="Squad automatic weapon">SAW</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Shotgun" title="Shotgun">Shotguns</a> (<a href="/wiki/List_of_shotguns" title="List of shotguns">list</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0;;wide"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Automatic_shotgun" title="Automatic shotgun">Automatic shotgun</a></li> <li><a href="/wiki/Coach_gun" title="Coach gun">Coach gun</a></li> <li><a href="/wiki/Combat_shotgun" title="Combat shotgun">Combat shotgun</a></li> <li><a href="/wiki/Double-barreled_shotgun" title="Double-barreled shotgun">Double-barreled</a></li> <li><a href="/wiki/Pump_action" title="Pump action">Pump action</a></li> <li><a href="/wiki/Riot_shotgun" title="Riot shotgun">Riot</a></li> <li><a href="/wiki/Sawed-off_shotgun" title="Sawed-off shotgun">Sawed-off</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;font-weight:normal;">Ammunition</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/20-gauge_shotgun" title="20-gauge shotgun">20-gauge shotgun</a></li> <li><a href="/wiki/Breaching_round" title="Breaching round">Breaching round</a></li> <li><a href="/wiki/Dragon%27s_breath_(ammunition)" title="Dragon's breath (ammunition)">Dragon's breath</a></li> <li><a href="/wiki/Shotgun_shell" class="mw-redirect" title="Shotgun shell">Shotgun shell</a> <ul><li><a href="/wiki/.410_bore" title=".410 bore">.410 bore</a></li></ul></li> <li><a href="/wiki/Shot_(pellet)" title="Shot (pellet)">Shot</a></li> <li><a href="/wiki/Shotgun_slug" title="Shotgun slug">Slug</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/History_of_the_firearm" title="History of the firearm">Historic</a> or famous</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AK-47" title="AK-47">AK-47</a></li> <li><a href="/wiki/AR-15_style_rifle" class="mw-redirect" title="AR-15 style rifle">AR-15</a></li> <li><a href="/wiki/M16" class="mw-redirect" title="M16">M16</a></li> <li><a href="/wiki/Antique_firearms" title="Antique firearms">Antique firearms</a></li> <li><a href="/wiki/Gatling_gun" title="Gatling gun">Gatling gun</a></li> <li><a href="/wiki/Winchester_rifle" title="Winchester rifle">Winchester rifle</a></li> <li><a href="/wiki/M1_Garand" title="M1 Garand">M1 Garand</a></li> <li><a href="/wiki/Mauser_rifles" class="mw-redirect" title="Mauser rifles">Mauser rifles</a></li> <li><a href="/wiki/Thompson_submachine_gun" title="Thompson submachine gun">Tommy Gun</a></li> <li><a href="/wiki/MP_40" title="MP 40">MP 40</a></li> <li><a href="/wiki/Uzi" title="Uzi">Uzi</a></li> <li><a href="/wiki/Colt_Single_Action_Army" title="Colt Single Action Army">Colt Peacemaker</a></li> <li><a href="/wiki/M1911" class="mw-redirect" title="M1911">M1911</a></li> <li><a href="/wiki/Glock" title="Glock">Glock</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible expanded navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Mechanics_and_components" style="font-size:114%;margin:0 4em">Mechanics and <a href="/wiki/Category:Firearm_components" title="Category:Firearm components">components</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Category:Firearm_components" title="Category:Firearm components">Components</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0;;wide"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gun_barrel" title="Gun barrel">Barrel</a> <ul><li><a href="/wiki/Feed_ramp" title="Feed ramp">Feed ramp</a></li> <li><a href="/wiki/Slug_barrel" title="Slug barrel">Slug</a></li> <li><a href="/wiki/Barrel_threads" title="Barrel threads">Threads</a></li> <li><a href="/wiki/Trunnion" title="Trunnion">Trunnion</a></li></ul></li> <li><a href="/wiki/Bayonet" title="Bayonet">Bayonet</a></li> <li><a href="/wiki/Belt_(firearms)" title="Belt (firearms)">Belt</a></li> <li><a href="/wiki/Blank-firing_adapter" title="Blank-firing adapter">Blank-firing adapter</a></li> <li><a href="/wiki/Breechblock" title="Breechblock">Breechblock</a></li> <li><a href="/wiki/Breechface" title="Breechface">Breechface</a></li> <li><a href="/wiki/Bolt_(firearms)" title="Bolt (firearms)">Bolt</a> <ul><li><a href="/wiki/Rotating_bolt" title="Rotating bolt">Rotating</a></li> <li><a href="/wiki/Telescoping_bolt" title="Telescoping bolt">Telescoping</a></li> <li><a href="/wiki/Flapper_locking" title="Flapper locking">Flapper</a></li> <li><a href="/wiki/Roller_locked" title="Roller locked">Roller</a></li> <li><a href="/wiki/Tilting_bolt" title="Tilting bolt">Tilting</a></li></ul></li> <li><a href="/wiki/Bump_stock" title="Bump stock">Bump stock</a></li> <li><a href="/wiki/Chamber_(firearms)" title="Chamber (firearms)">Chamber</a></li> <li><a href="/wiki/Cocking_handle" title="Cocking handle">Cocking handle</a></li> <li><a href="/wiki/Cylinder_(firearms)" title="Cylinder (firearms)">Cylinder</a></li> <li><a href="/wiki/Extractor_(firearms)" title="Extractor (firearms)">Extractor</a></li> <li><a href="/wiki/Firing_pin" title="Firing pin">Firing pin</a></li> <li><a href="/wiki/Flash_suppressor" title="Flash suppressor">Flash suppressor</a></li> <li><a href="/wiki/Fluting_(firearms)" title="Fluting (firearms)">Fluting</a></li> <li><a href="/wiki/Forward_assist" title="Forward assist">Forward assist</a></li> <li><a href="/wiki/Freebore" title="Freebore">Freebore</a></li> <li><a href="/wiki/Forearm_(firearm_component)" title="Forearm (firearm component)">Forearm</a></li> <li><a href="/wiki/Vertical_forward_grip" title="Vertical forward grip">Foregrip</a></li> <li><a href="/wiki/Hammer_(firearms)" title="Hammer (firearms)">Hammer</a> <ul><li><a href="/wiki/Half-cock" title="Half-cock">Half-cock</a></li> <li><a href="/wiki/Hammer_(firearms)#Linear_hammer" title="Hammer (firearms)">Linear</a></li> <li><a href="/wiki/Hammer_(firearms)#Striker" title="Hammer (firearms)">Striker</a></li></ul></li> <li><a href="/wiki/Lock_(firearm)" title="Lock (firearm)">Lock</a> <ul><li><a href="/wiki/Flintlock" title="Flintlock">Flintlock</a></li> <li><a href="/wiki/Wheellock" title="Wheellock">Wheellock</a></li></ul></li> <li><a href="/wiki/Magazine_(firearms)" title="Magazine (firearms)">Magazine</a> <ul><li><a href="/wiki/Bottom_metal" title="Bottom metal">Bottom metal</a></li> <li><a href="/wiki/Clip_(firearms)" title="Clip (firearms)">Clip</a></li> <li><a href="/wiki/Drum_magazine" title="Drum magazine">Drum</a></li> <li><a href="/wiki/High-capacity_magazine" title="High-capacity magazine">High-capacity</a></li> <li><a href="/wiki/Speedloader" title="Speedloader">Speedloader</a></li> <li><a href="/wiki/Stripper_clip" title="Stripper clip">Stripper clip</a></li></ul></li> <li><a href="/wiki/Muzzle_brake" title="Muzzle brake">Muzzle brake</a></li> <li><a href="/wiki/Muzzle_shroud" title="Muzzle shroud">Muzzle shroud</a></li> <li><a href="/wiki/Pistol_grip" title="Pistol grip">Pistol grip</a></li> <li><a href="/wiki/Pistol_slide" title="Pistol slide">Pistol slide</a></li> <li><a href="/wiki/Rail_system_(firearms)" class="mw-redirect" title="Rail system (firearms)">Rail system</a></li> <li><a href="/wiki/Receiver_(firearms)" title="Receiver (firearms)">Receiver</a></li> <li><a href="/wiki/Recoil_pad" title="Recoil pad">Recoil pad</a></li> <li><a href="/wiki/Rim_(firearms)" title="Rim (firearms)">Rim</a></li> <li><a href="/wiki/Safety_(firearms)" title="Safety (firearms)">Safety</a></li> <li><a href="/wiki/Sear_(firearm)" title="Sear (firearm)">Sear</a> <ul><li><a href="/wiki/Auto_sear" title="Auto sear">Auto sear</a></li></ul></li> <li><a href="/wiki/Barrel_shroud" title="Barrel shroud">Shroud</a></li> <li><a href="/wiki/Silencer_(firearms)" title="Silencer (firearms)">Silencer</a></li> <li><a href="/wiki/Squeeze_bore" title="Squeeze bore">Squeeze bore</a></li> <li><a href="/wiki/Choke_(firearms)" title="Choke (firearms)">Choke</a></li> <li><a href="/wiki/Stock_(firearms)" title="Stock (firearms)">Stock</a></li> <li><a href="/wiki/Synchronization_gear" title="Synchronization gear">Synchronization gear</a></li> <li><a href="/wiki/Tapering_(firearms)" title="Tapering (firearms)">Tapering</a></li> <li><a href="/wiki/Trigger_(firearms)" title="Trigger (firearms)">Trigger</a> <ul><li><a href="/wiki/Trigger_guard" title="Trigger guard">guard</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;font-weight:normal;"><a href="/wiki/Sight_(device)" title="Sight (device)">Sights</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Diopter_sight" title="Diopter sight">Diopter</a></li> <li><a href="/wiki/Finderscope" title="Finderscope">Finderscope</a></li> <li><a href="/wiki/Globe_sight" title="Globe sight">Globe</a></li> <li><a href="/wiki/Holographic_weapon_sight" title="Holographic weapon sight">Holographic</a></li> <li><a href="/wiki/Iron_sights" title="Iron sights">Iron</a></li> <li><a href="/wiki/Laser_sight_(firearms)" class="mw-redirect" title="Laser sight (firearms)">Laser</a></li> <li><a href="/wiki/Reticle" title="Reticle">Reticle</a></li> <li><a href="/wiki/Reflex_sight" class="mw-redirect" title="Reflex sight">Reflex</a> <ul><li><a href="/wiki/Red_dot_sight" title="Red dot sight">Red dot</a></li></ul></li> <li><a href="/wiki/Sight_magnifier" title="Sight magnifier">Magnifier</a></li> <li><a href="/wiki/Scope_mount" title="Scope mount">Scope mount</a></li> <li><a href="/wiki/Tang_sight" title="Tang sight">Tang</a></li> <li><a href="/wiki/Telescopic_sight" title="Telescopic sight">Telescopic</a></li> <li><a href="/wiki/Night-vision_device" title="Night-vision device">Night vision</a></li> <li><a href="/wiki/Thermal_weapon_sight" title="Thermal weapon sight">Thermal</a></li> <li><a href="/wiki/Sighting_in" title="Sighting in">Zeroing</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Action_(firearms)" title="Action (firearms)">Actions</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0;;wide"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Blowback_(firearms)" title="Blowback (firearms)">Blowback</a></li> <li><a href="/wiki/Blow-forward" class="mw-redirect" title="Blow-forward">Blow-forward</a></li> <li><a href="/wiki/Bolt_action" title="Bolt action">Bolt</a></li> <li><a href="/wiki/Boxlock_action" title="Boxlock action">Boxlock</a></li> <li><a href="/wiki/Breechloader" title="Breechloader">Breechloading</a></li> <li><a href="/wiki/Break_action" title="Break action">Break</a></li> <li><a href="/wiki/Open_bolt" title="Open bolt">Open bolt</a></li> <li><a href="/wiki/Closed_bolt" title="Closed bolt">Closed bolt</a></li> <li><a href="/wiki/Electronic_firing" title="Electronic firing">Electronic</a></li> <li><a href="/wiki/Gas-operated_reloading" title="Gas-operated reloading">Gas-operated</a></li> <li><a href="/wiki/Lever_action" title="Lever action">Lever</a></li> <li><a href="/wiki/Muzzleloader" title="Muzzleloader">Muzzleloading</a></li> <li><a href="/wiki/Out-of-battery" title="Out-of-battery">Out-of-battery</a></li> <li><a href="/wiki/Pump_action" title="Pump action">Pump</a></li> <li><a href="/wiki/Push_feed_and_controlled_feed" title="Push feed and controlled feed">Push/Controlled feed</a></li> <li><a class="mw-selflink selflink">Recoil-operated</a></li> <li><a href="/wiki/Repeating_firearm" title="Repeating firearm">Repeating</a></li> <li><a href="/wiki/Revolver" title="Revolver">Revolver</a></li> <li><a href="/wiki/Self-loading_rifle" title="Self-loading rifle">Self-loading</a></li> <li><a href="/wiki/Single-shot" title="Single-shot">Single-shot</a></li> <li><a href="/wiki/Slamfire" title="Slamfire">Slamfire</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Physics_of_firearms" title="Physics of firearms">Physics</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0;;wide"><tbody><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ballistics" title="Ballistics">Ballistics</a> <ul><li><a href="/wiki/Ballistic_coefficient" title="Ballistic coefficient">Ballistic coefficient</a></li> <li><a href="/wiki/External_ballistics" title="External ballistics">External</a></li> <li><a href="/wiki/Terminal_ballistics" title="Terminal ballistics">Terminal</a></li> <li><a href="/wiki/Transitional_ballistics" title="Transitional ballistics">Transitional</a></li></ul></li> <li><a href="/wiki/Physics_of_firearms" title="Physics of firearms">Physics of firearms</a></li> <li><a href="/wiki/Rangefinder" title="Rangefinder">Rangefinding/keeping</a> <ul><li><a href="/wiki/Mathematical_discussion_of_rangekeeping" title="Mathematical discussion of rangekeeping">Mathematics</a></li> <li><a href="/wiki/Stadiametric_rangefinding" title="Stadiametric rangefinding">Stadiametric</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Metrics</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Accurizing" title="Accurizing">Accurizing</a></li> <li><a href="/wiki/Bore_axis" title="Bore axis">Bore axis</a></li> <li><a href="/wiki/Caliber" title="Caliber">Caliber</a></li> <li><a href="/wiki/Circular_error_probable" title="Circular error probable">Circular error probable</a></li> <li><a href="/wiki/Effective_range#Weapons" title="Effective range">Effective range</a></li> <li><a href="/wiki/Gauge_(firearms)" title="Gauge (firearms)">Gauge</a></li> <li><a href="/wiki/Gun_chronograph" title="Gun chronograph">Gun chronograph</a></li> <li><a href="/wiki/Gun_harmonisation" title="Gun harmonisation">Gun harmonisation</a></li> <li><a href="/wiki/Headspace_(firearms)" title="Headspace (firearms)">Headspace</a></li> <li><a href="/wiki/Length_of_pull" title="Length of pull">Length of pull</a></li> <li><a href="/wiki/Lock_time" title="Lock time">Lock time</a></li> <li><a href="/wiki/Match_grade" title="Match grade">Match grade</a></li> <li><a href="/wiki/Mean_time_between_failures" title="Mean time between failures">Mean time between failures</a></li> <li><a href="/wiki/Minute_and_second_of_arc#Firearms" title="Minute and second of arc">Minute of Angle (MOA)</a></li> <li><a href="/wiki/Muzzle_(firearms)" class="mw-redirect" title="Muzzle (firearms)">Muzzle</a> <ul><li><a href="/wiki/Muzzle_energy" title="Muzzle energy">Energy</a></li> <li><a href="/wiki/Muzzle_rise" title="Muzzle rise">Rise</a></li> <li><a href="/wiki/Muzzle_velocity" title="Muzzle velocity">Velocity</a></li></ul></li> <li><a href="/wiki/Penetration_(weaponry)" title="Penetration (weaponry)">Penetration</a></li> <li><a href="/wiki/Power_factor_(shooting_sports)" title="Power factor (shooting sports)">Power factor</a></li> <li><a href="/wiki/Precision-guided_firearm" title="Precision-guided firearm">Precision-guided</a></li> <li><a href="/wiki/Rate_of_fire" title="Rate of fire">Rate of fire</a></li> <li><a href="/wiki/Recoil" title="Recoil">Recoil</a></li> <li><a href="/wiki/Shot_grouping" title="Shot grouping">Group</a></li> <li><a href="/wiki/Stock_(firearms)#Stock_measurements" title="Stock (firearms)">Stock measurements</a></li> <li><a href="/wiki/Stopping_power" title="Stopping power">Stopping power</a> <ul><li><a href="/wiki/Handgun_effectiveness" title="Handgun effectiveness">Handgun effectiveness</a></li></ul></li> <li><a href="/wiki/Rifling#Twist_rate" title="Rifling">Twist rate</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible expanded navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Shooting_and_ammunition" style="font-size:114%;margin:0 4em"><a href="/wiki/Shooting" title="Shooting">Shooting</a> and <a href="/wiki/Ammunition" title="Ammunition">ammunition</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Gunshot" title="Gunshot">Gunshot</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0;;wide"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dry_fire" title="Dry fire">Dry fire</a></li> <li><a href="/wiki/Shooting" title="Shooting">Firing (Shooting)</a></li> <li><a href="/wiki/Gunshot" title="Gunshot">Gunshot</a></li> <li><a href="/wiki/Shootout" title="Shootout">Firefight</a></li> <li><a href="/wiki/Firearm_maintenance" title="Firearm maintenance">Maintenance</a> <ul><li><a href="/wiki/Field_strip" title="Field strip">Field strip</a></li> <li><a href="/wiki/Fouling" title="Fouling">Fouling</a></li></ul></li> <li><a href="/wiki/Firearm_malfunction" title="Firearm malfunction">Malfunction</a> <ul><li><a href="/wiki/Cooking_off" title="Cooking off">Cooking off</a></li> <li><a href="/wiki/Hang_fire" title="Hang fire">Hang fire</a></li> <li><a href="/wiki/Squib_load" title="Squib load">Squib load</a></li></ul></li> <li><a href="/wiki/Ricochet" title="Ricochet">Ricochet</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;font-weight:normal;">Ignition</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Fire_forming" title="Fire forming">Fire forming</a></li> <li><a href="/wiki/Obturation" title="Obturation">Obturation</a></li> <li><a href="/wiki/Primer_(firearms)" title="Primer (firearms)">Primer</a> <ul><li><a href="/wiki/Gunpowder" title="Gunpowder">Gunpowder</a></li> <li><a href="/wiki/Percussion_cap" title="Percussion cap">Percussion cap</a></li> <li><a href="/wiki/Rimfire_ammunition" title="Rimfire ammunition">Rimfire</a></li> <li><a href="/wiki/Tubes_and_primers_for_ammunition" title="Tubes and primers for ammunition">Tubes and Primers</a></li></ul></li> <li><a href="/wiki/Firearm_propellant" title="Firearm propellant">Propellant</a> <ul><li><a href="/wiki/Ball_propellant" title="Ball propellant">Ball propellant</a></li> <li><a href="/wiki/Cordite" title="Cordite">Cordite</a></li> <li><a href="/wiki/Improved_military_rifle_powder" title="Improved military rifle powder">Improved Military Rifle</a></li> <li><a href="/wiki/Ramrod" title="Ramrod">Ramrod</a></li> <li><a href="/wiki/Smokeless_powder" title="Smokeless powder">Smokeless powder</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Ammunition" title="Ammunition">Ammunition</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0;;wide"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cannelure" title="Cannelure">Cannelure</a></li> <li><a href="/wiki/Dummy_round" title="Dummy round">Dummy round</a> <ul><li><a href="/wiki/Snap_cap" title="Snap cap">Snap cap</a></li></ul></li> <li><a href="/wiki/Flechette" title="Flechette">Flechette</a></li> <li><a href="/wiki/Gas_check" title="Gas check">Gas check</a></li> <li><a href="/wiki/Overpressure_ammunition" title="Overpressure ammunition">Overpressure ammunition</a></li> <li><a href="/wiki/Polymer-cased_ammunition" title="Polymer-cased ammunition">PCA</a></li> <li><a href="/wiki/Sabot_(firearms)" title="Sabot (firearms)">Sabot</a></li> <li><a href="/wiki/Wadding" title="Wadding">Wadding</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;font-weight:normal;"><a href="/wiki/Bullet" title="Bullet">Bullets</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Armor-piercing_bullet" title="Armor-piercing bullet">Armour piercing</a></li> <li><a href="/wiki/Cast_bullet" title="Cast bullet">Cast</a></li> <li><a href="/wiki/Expanding_bullet" title="Expanding bullet">Expanding</a></li> <li><a href="/wiki/Full_metal_jacket_(ammunition)" title="Full metal jacket (ammunition)">Full metal jacket</a></li> <li><a href="/wiki/Frangible_bullet" title="Frangible bullet">Frangible</a></li> <li><a href="/wiki/Green_bullet" title="Green bullet">Green</a></li> <li><a href="/wiki/Incendiary_ammunition" title="Incendiary ammunition">Incendiary</a></li> <li><a href="/wiki/High-explosive_incendiary" title="High-explosive incendiary">High explosive</a></li> <li><a href="/wiki/High-explosive_incendiary/armor-piercing_ammunition" title="High-explosive incendiary/armor-piercing ammunition">HEIAP</a></li> <li><a href="/wiki/Projectile" title="Projectile">Projectile</a></li> <li><a href="/wiki/Raufoss_Mk_211" title="Raufoss Mk 211">Raufoss</a></li> <li><a href="/wiki/Round_shot" title="Round shot">Round shot</a></li> <li><a href="/wiki/Saboted_light_armor_penetrator" title="Saboted light armor penetrator">SLAP</a></li> <li><a href="/wiki/Soft-point_bullet" title="Soft-point bullet">Soft point</a></li> <li><a href="/wiki/Supercavitating_ammunition" class="mw-redirect" title="Supercavitating ammunition">Supercavitating</a></li> <li><a href="/wiki/Total_metal_jacket" title="Total metal jacket">Total metal jacket</a></li> <li><a href="/wiki/Tracer_ammunition" title="Tracer ammunition">Tracer</a></li> <li><a href="/wiki/Hollow-base_bullet" title="Hollow-base bullet">Hollow base</a></li> <li><a href="/wiki/Hollow-point_bullet" title="Hollow-point bullet">Hollow point</a></li> <li><a href="/wiki/Mini%C3%A9_ball" title="Minié ball">Minié</a></li> <li><a href="/wiki/Meplat" title="Meplat">Meplat</a></li> <li><a href="/wiki/Plastic-tipped_bullet" title="Plastic-tipped bullet">Plastic tipped</a></li> <li><a href="/wiki/Armour-piercing,_capped,_ballistic_capped_shell" title="Armour-piercing, capped, ballistic capped shell">ABCBC</a></li> <li><a href="/wiki/Snake_shot" title="Snake shot">Snake shot</a></li> <li><a href="/wiki/Spitzer_(bullet)" title="Spitzer (bullet)">Spitzer</a></li> <li><a href="/wiki/Very-low-drag_bullet" title="Very-low-drag bullet">VLD</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;font-weight:normal;"><a href="/wiki/Cartridge_(firearms)" title="Cartridge (firearms)">Cartridges</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Blank_(cartridge)" title="Blank (cartridge)">Blank</a></li> <li><a href="/wiki/Caseless_ammunition" title="Caseless ammunition">Caseless</a></li> <li><a href="/wiki/Centerfire_cartridge" class="mw-redirect" title="Centerfire cartridge">Centrefire</a></li> <li><a href="/wiki/Handloading" title="Handloading">Handloading</a></li> <li><a href="/wiki/Rifle_cartridge" title="Rifle cartridge">Rifle cartridge</a> <ul><li><a href="/wiki/Fully_powered_cartridge" title="Fully powered cartridge">Fully powered</a></li> <li><a href="/wiki/Intermediate_cartridge" title="Intermediate cartridge">Intermediate</a></li> <li><a href="/wiki/List_of_rifle_cartridges" title="List of rifle cartridges">list</a></li></ul></li> <li><a href="/wiki/Paper_cartridge" title="Paper cartridge">Paper</a></li> <li><a href="/wiki/Pinfire_cartridge" title="Pinfire cartridge">Pinfire</a></li> <li><a href="/wiki/Wildcat_cartridge" title="Wildcat cartridge">Wildcat</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible expanded navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Society,_safety,_industry,_and_laws" style="font-size:114%;margin:0 4em"><a href="/wiki/Gun_cultures" title="Gun cultures">Society</a>, <a href="/wiki/Gun_safety" title="Gun safety">safety</a>, <a href="/wiki/Firearm_industry" class="mw-redirect" title="Firearm industry">industry</a>, and <a href="/wiki/Overview_of_gun_laws_by_nation" title="Overview of gun laws by nation">laws</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Gun_cultures" title="Gun cultures">Society</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Celebratory_gunfire" title="Celebratory gunfire">Celebratory gunfire</a></li> <li><a href="/wiki/Gun_ownership" title="Gun ownership">Civilian gun ownership</a> <ul><li><a href="/wiki/Percent_of_households_with_guns_by_country" title="Percent of households with guns by country">Household ownership rates</a></li></ul></li> <li><a href="/wiki/Exhibition_shooting" title="Exhibition shooting">Exhibition shooting</a></li> <li><a href="/wiki/Gun_cultures" title="Gun cultures">Gun cultures</a> <ul><li><a href="/wiki/Gun_culture_in_the_United_States" title="Gun culture in the United States">United States</a></li> <li><a href="/wiki/Gun_shows_in_the_United_States" title="Gun shows in the United States">Gun shows</a></li> <li><a href="/wiki/List_of_U.S._state_firearms" title="List of U.S. state firearms">State firearms</a></li></ul></li> <li><a href="/wiki/Hunting" title="Hunting">Hunting</a></li> <li><a href="/wiki/Jungle_style_(firearm_magazines)" class="mw-redirect" title="Jungle style (firearm magazines)"><i>Jungle style</i></a></li> <li><a href="/wiki/Pistol_duelling" class="mw-redirect" title="Pistol duelling">Pistol duelling</a></li> <li><a href="/wiki/Index_of_gun_politics_articles" title="Index of gun politics articles">Politics</a></li> <li><a href="/wiki/Shooting_sports" title="Shooting sports">Shooting sports</a> <ul><li><a href="/wiki/Civilian_Marksmanship_Program" title="Civilian Marksmanship Program">Civilian Marksmanship Program</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Gun_violence" title="Gun violence">Gun violence</a><br />and <a href="/wiki/Gun_safety" title="Gun safety">safety</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gun_violence_in_the_United_States" title="Gun violence in the United States">in the United States</a></li> <li><a href="/wiki/List_of_assassinations_by_firearm" title="List of assassinations by firearm">Assassinations</a></li> <li><a href="/wiki/List_of_countries_by_firearm-related_death_rate" class="mw-redirect" title="List of countries by firearm-related death rate">Deaths</a></li> <li><a href="/wiki/Forensic_firearm_examination" title="Forensic firearm examination">Forensics</a></li> <li><a href="/wiki/Gunfighter" title="Gunfighter">Gunfighter</a></li> <li><a href="/wiki/Gun_safety" title="Gun safety">Gun safety</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Firearm_industry" class="mw-redirect" title="Firearm industry">Firearm industry</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3D_printed_firearm" class="mw-redirect" title="3D printed firearm">3D printed firearm</a> <ul><li><a href="/wiki/List_of_3D_printed_weapons_and_parts" title="List of 3D printed weapons and parts">list</a></li></ul></li> <li><a href="/wiki/List_of_firearm_brands" title="List of firearm brands">Firearm brands</a></li> <li><a href="/wiki/Category:Firearms_by_country" title="Category:Firearms by country">Firearms by country</a></li> <li><a href="/wiki/Gun_shop" title="Gun shop">Gun shops</a> <ul><li><a href="/wiki/Category:Firearm_commerce" title="Category:Firearm commerce">list</a></li></ul></li> <li><a href="/wiki/Gunsmith" title="Gunsmith">Gunsmith</a></li> <li><a href="/wiki/Improvised_firearm" title="Improvised firearm">Improvised firearm</a></li> <li><a href="/wiki/List_of_most-produced_firearms" title="List of most-produced firearms">Most-produced</a></li> <li><a href="/wiki/Privately_made_firearm" class="mw-redirect" title="Privately made firearm">Privately made</a></li> <li><a href="/wiki/Small_arms_trade" title="Small arms trade">Small arms trade</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Arms_control" title="Arms control">Arms control</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Arms_control" title="Arms control">Arms</a> and <a href="/wiki/Gun_control" title="Gun control">Gun control</a> <ul><li><a href="/wiki/Disarmament" title="Disarmament">Disarmament</a></li> <li><a href="/wiki/Campaign_Against_Arms_Trade" title="Campaign Against Arms Trade">Campaign Against Arms Trade</a></li></ul></li> <li><a href="/wiki/Featureless_rifles" title="Featureless rifles">Featureless rifles</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Overview_of_gun_laws_by_nation" title="Overview of gun laws by nation">Gun laws</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0;;wide"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Air_travel_with_firearms_and_ammunition" title="Air travel with firearms and ammunition">Air travel</a></li> <li><a href="/wiki/Assault_weapons" class="mw-redirect" title="Assault weapons">Assault weapons</a></li> <li><a href="/wiki/Concealed_carry" title="Concealed carry">Concealed carry</a> <ul><li><a href="/wiki/Concealed_carry_in_the_United_States" title="Concealed carry in the United States">in the U.S.</a></li></ul></li> <li><a href="/wiki/Firearms_license" title="Firearms license">License</a></li> <li><a href="/wiki/High-capacity_magazine_ban" title="High-capacity magazine ban">High-capacity magazine ban</a></li> <li><a href="/wiki/Right_to_keep_and_bear_arms" title="Right to keep and bear arms">Right to bear arms</a></li> <li><a href="/wiki/Small_Arms_and_Light_Weapons" class="mw-redirect" title="Small Arms and Light Weapons">Small Arms & Light Weapons (SALW)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;font-weight:normal;">United States Gun</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gun_law_in_the_United_States" title="Gun law in the United States">Laws</a> (<a href="/wiki/Gun_laws_in_the_United_States_by_state" title="Gun laws in the United States by state">by U.S. state</a>)</li> <li><a href="/wiki/Assault_weapons_legislation_in_the_United_States" title="Assault weapons legislation in the United States">Legislation</a></li> <li><a href="/wiki/Gun_politics_in_the_United_States" title="Gun politics in the United States">Politics</a></li> <li><a href="/wiki/Federal_Assault_Weapons_Ban" title="Federal Assault Weapons Ban">Federal Assault Weapons Ban</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Recoil_operation&oldid=1254777232">https://en.wikipedia.org/w/index.php?title=Recoil_operation&oldid=1254777232</a>"</div></div> <div id="catlinks" class="catlinks" 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