American made and built on tradition, these are the hallmarks of Frontier Cartridge. Frontier Cartridge applications range from plinking, target shooting and hunting to law enforcement training and self-defense. Product Specifications Caliber: 7.62x51mm (308 Winchester) Bullet Weight: 150 Grain Bullet Type: Full Metal Jacket (FMJ) Muzzle Velocity: 2,790 fps Muzzle Energy: 2,592 ft-lbs Quantity: 20 Rounds per Box