Get long range accuracy with 7.62x51mm ammo from WInchester. This Sierra Matchking HPBT round has a 175 grain bullet weight and has a brass casing. The next time you take your talent to the range for a long range session take Winchester ammo along for the ride for reliable and accurate results. - Caliber: 7.62x51mm - Bullet Type: Sierra Hollow Point - Bullet Weight: 175 gr - Muzzle Energy: 2667 ft / lbs - Muzzle Velocity: 2620 fps - Rounds Per Box: 20