22 Long Rifle Ammo: Beginner’s Guide to .22 LR 22 Long Rifle ammo, often written as .22 LR, is one of the most popular rimfire cartridges for new shooters, range practice, plinking, small-game hunting, and marksmanship training. It is known for low recoil, low noise, wide firearm support, and affordable practice compared with many centerfire […]