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::.22 Long Rifle

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The .22 Long Rifle rimfire (5.6×15mmR – metric designation) cartridge is a long-established variety of ammunition, and in terms of units sold is still by far the most common in the world today.

The cartridge is often referred to simply as .22 LR ("twenty-two-{{#invoke:IPAc-en|main}}-{{#invoke:IPAc-en|main}}") and various rifles, pistols, revolvers, and even some smoothbore shotguns have been manufactured in this caliber. The cartridge originated from the Flobert BB cap of 1845 through the .22 Smith & Wesson cartridge of 1857, and was developed by the American firearms manufacturer J. Stevens Arms & Tool Company in 1887<ref name="Kokalis">Kokalis, Peter: Weapons Tests and Evaluations: The Best of Soldier of Fortune, page 331. Paladin Press, 2001. ISBN 978-1-58160-122-0</ref> by combining the casing of the .22 Long with the {{safesubst:#invoke:convert|convert}} bullet of the .22 Extra Long. For many decades, it has been a very popular cartridge around the world. It is one of the few cartridges that are accepted by a large variety of rifles, as well as pistols. The .22 Long Rifle and related cartridges (.22 Short, .22 Long, and .22 Extra Long) use a heeled bullet, which means that the bullet is the same diameter as the case, and has a narrower "heel" portion that fits in the case.


.22 Long Rifle sections
Intro  Popularity  Performance  Variants  Usage  Cartridge dimensions  Muzzle velocity (nominal)  See also  References  External links  

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