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  2. .22 long rifle - Wikipedia

    en.wikipedia.org/wiki/.22_Long_Rifle

    The .22 long rifle, also known as the .22 LR or 5.7×15mmR, [4] [5] is a long-established variety of .22 caliber rimfire ammunition originating from the United States. It is used in a wide range of firearms including rifles , pistols , revolvers , and submachine guns .

  3. Beretta 21A Bobcat - Wikipedia

    en.wikipedia.org/wiki/Beretta_21A_Bobcat

    The Beretta 21A Bobcat is available chambered for either .22 LR or .25 ACP (6.35 mm) ammunition. It has a simple blowback operation, with a single- and double-action trigger mechanism, and exposed hammer. It has a magazine release button in the left side grip, located between the grip retaining screws.

  4. Caliber - Wikipedia

    en.wikipedia.org/wiki/Caliber

    While modern firearms are generally referred to by the name of the cartridge the gun is chambered for, they are still categorized together based on bore diameter. [citation needed] For example, a firearm might be described as a "30 caliber rifle", which could accommodate any of a wide range of cartridges using a roughly 0.30 inches (7.6 mm) projectile; or as a "22 rimfire", referring to any ...

  5. Rimfire ammunition - Wikipedia

    en.wikipedia.org/wiki/Rimfire_ammunition

    The .22 LR uses a heeled bullet, which means that the bullet is the same diameter as the case, which has a narrower "heel" portion that fits into the case. It is one of the few cartridges that are manufactured and used in a large variety of rifles and handguns.

  6. Cartridge (firearms) - Wikipedia

    en.wikipedia.org/wiki/Cartridge_(firearms)

    The .22 LR and related .22 rimfire cartridges use a heeled bullet, where the external diameter of the case is the same as the diameter of the forward portion of the bullet and where the rearward portion of the bullet, which extends into the case, is necessarily smaller in diameter than the main body of the bullet.

  7. List of handgun cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_handgun_cartridges

    Although not originally designed for handguns, several rifle and shotgun cartridges have also been chambered in a number of large handguns, primarily in revolvers like the Phelps Heritage revolver, Century Arms revolver, Thompson/Centre Contender break-open pistol, Magnum Research BFR, and the Pfeifer Zeliska revolvers.

  8. Intratec TEC-22 - Wikipedia

    en.wikipedia.org/wiki/Intratec_TEC-22

    The Intratec TEC-22 is a semi-automatic handgun chambered in .22 Long Rifle. [1] It was also marketed as the Scorpion and Sport-22. The TEC-22 operates using a straight blow-back action.

  9. Tracer ammunition - Wikipedia

    en.wikipedia.org/wiki/Tracer_ammunition

    As long as the pilot can put the "pipper" (aiming point) in the head-up display (HUD) onto the target, he can be assured that the burst will be on target since the computers automatically compute range, closing rate, deflection, lateral accelerations, and even weather conditions to calculate target lead and aimpoint. Thus one of the primary ...