Varmint 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. Varmint Specifications Brand: CCI Category: Rimfire Rounds Caliber: 22 Short Model: Varmint Rounds Per Box: 100 Casing Material: Brass Muzzle Energy: 73 ft lbs Muzzle Velocity: 1105 fps Sub Brand Short: HP Bullet Type: Copper Plated Hollow Point (CPHP) Bullet Weight: 27 gr