MaxxTech 7.62x39mm ammo delivers reliable performance with a 123-grain FMJ bullet, steel-case construction, and 2330 fps velocity. It feeds smoothly and hits consistently. It comes in a 20-round box and is non-corrosive. Product Specifications Caliber: 7.62x39mm Bullet Weight: 123 Grain Bullet Type: Full Metal Jacket (FMJ) Muzzle Velocity: 2,330 fps Muzzle Energy: 1,4783 ft-lbs Quantity: 20 Rounds per Box