This is excellent ammo for practice recreational shooters serious competitive handgun shooting sports Bullseye competitors shooting action pistol shooting matches and silhouette shooters. Also a excellent home defense round. – Caliber: 303 British – Bullet Type: Full Metal Jacket – Bullet Weight: 180 gr – Muzzle Energy: 2376 ft / lbs – Muzzle Velocity: 2438 fps – Rounds Per Box: 20