The .22 Long Rifle cartridge is the most popular cartridge in existence. Every year, billions of .22 LR cartridges are purchased and shot. It is popular for both target shooting and hunting, and is used by many for self defense. It has been used by the military establishments of most countries, mostly as a training round, but also in combat. The .22 LR has been used to kill most animals from the smallest, including some insects, on up to elephants.The .22 Long Rifle is derived from the .22 Short cartridge, both are rimfire cartridges which use a heeled bullet which...