CCI Mini-Mag 22 LR 40 Grain CPRN Ammo: Product Specifications and Features CCI Mini-Mag 22 LR 40 Grain CPRN Ammo is a .22 Long Rifle rimfire cartridge featuring a 40-grain copper-plated round nose projectile. The Mini-Mag line is a well-known part of CCI’s rimfire ammunition range, with product specifications that help distinguish it from other […]