.22 long rifle

The .22 long rifle (.22LR), also known as the 5.7×15mmR, 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. It is a well-established small-game round but is not typically used for hunting larger game, as it lacks the necessary stopping power.