CCI Varmint Maxi-Mag Features One look is all it takes to know that CCI understands what varmint hunters desire. The Varmint Ammunition line features a variety of bullet technologies that are designed for the same goal: total devastation on impact. The Maxi-Mag offers controlled expansion and excellent energy transfer. CCI Varmint Maxi-Mag Specifications Manufacturer: CCI Model: Varmint Maxi-Mag Caliber: 22 Mag Bullet Weight: 40 gr Rounds Per Box: 50 Casing Material: Brass Bullet Type: Jacketed Hollow Point (JHP) Muzzle Energy: 312 ft lbs Muzzle Velocity: 1875 fps