Caliber: 6.8mm Remington SPC - Weight: 120 Grains - Bullet Type: SST - Muzzle Energy: 1612 ft lbs - Muzzle Velocity: 2460 fps - Casing Material: Brass - Rounds Per Box: 20 - Millions of successful hunts have proven the accuracy and deadly knockdown power of the famous Hornady InterLock SST and InterBond bullets we load into every Hornady Custom rifle cartridge. Each cartridge is loaded to ensure optimal pressure velocity and consistency from lot to lot.