Super-X is made using precise manufacturing processes and the highest quality components to provide consistent dependable performance that generations of shooters continue to rely upon. – Caliber : 223 Winchester Super Short Magnum – Bullet Weight: 64 gr – Bullet Type: Power-Point – Muzzle Energy: 1841 ft / lbs – Muzzle Velocity: 3600 fps – Rounds Per Box: 20 – Rounds Per Case: 200