Winchester’s Copper Impact features a large-impact-diameter Copper Extreme Point which expands immediately upon contact to deliver massive knockdown power. Its solid copper bullet design offers improved weight retention over standard jacketed lead-core bullets. – Cartridge: 300 Winchester Short Magnum – Bullet Type: Extreme Point Copper – Bullet Weight: 180 gr – Muzzle Velocity: 2950 fps – Muzzle Energy: 3478 ft / lbs – Rounds Per Box: 20