Rimfire Features ARMSCOR USA ammunition line is made in the USA. The Company offers a wide selection of competitively priced ammunition and components with sales spread throughout the world. ARMSCOR complies with the SAAMI CIP and other military or customer desired standards or requirements. ARMSCOR cartridges and components are widely used by the police military gun hobbyist combat shooters and other shooting enthusiast due to its high quality precise and dependable performance. Rimfire Specifications Caliber: 22 LR Model: Rimfire Bullet Weight: 36 gr Rounds Per Box: 50 Casing Material: Brass Bullet Type: High Velocity Hollow Point (HVHP) Muzzle Energy: 132 ft lbs Muzzle Velocity: 1285 fps