Hornet or .22 rimfire rifle barrel mounted over a .410 bore shotgun barrel. S&W, .357 SIG, or .22 Long Rifle. Rascal is a bolt-action single-shot rimfire rifle chambered for .22 LR ammunition. The TEC-22 is a handgun chambered in .22 Long Rifle. LR rounds in a .22 WMR firearm. Two performance classes of .22 rimfire subsonic rounds exist. Nisman was found next to a Bersa gun, .22 caliber. The press reported that it was a Ruger MK III Target .22 caliber semi-automatic handgun. WMRF, .22 MRF, or .22 Mag, is a rimfire cartridge. ACP means it is more reliable than similar pocket pistols chambered in .22 LR. Long bullet has less inertia than the .22 Long Rifle. It can be fired in any rifle chambered for the more powerful .22 WMR. Cadets are also introduced to weapons such as a .22 caliber rifle. Hornet and the .22 WMR in addition to the .22 Long Rifle. The Ruger LCR 22 an 8-shot .22 LR version.