Winchester Copper Impact is a high-performance 20 Gauge sabot slug designed for superior terminal performance on big game. These 2.75 shells feature a 3/4 oz solid copper projectile, engineered for massive expansion and high weight retention upon impact. With a muzzle velocity of 1600 fps and a powerful muzzle energy of 1847 ft-lbs, this load provides the accuracy and knockdown power required for ethical hunting. The all-copper construction makes it an ideal choice for hunters in areas with non-toxic ammunition requirements. Recommended use: big game hunting. 5 rounds per box. Safety Note Sabot slugs are designed specifically for use in rifled shotgun barrels. Using them in a smoothbore barrel will result in poor accuracy and stability. Always verify your shotgun is chambered for 20 Gauge 2.75 shells and follow all safe firearm handling practices.