Copper Impact ammunition is engineered specifically for big game hunters, utilizing a tough solid copper expanding projectile that provides more impact trauma, better energy transfer, and larger would cavities for faster knockdown.FeaturesACCELERATED EXPANSION – Large diameter polymer tip delivers rapid impact traumaFLAT TRAJECTORY – High ballistic coefficient bullet with engineered boattail improves long range flight characteristicsLETHAL ON BIG GAME – Devastating performance on deer, elk, and anything in betweenSUPREME ENERGY TRANSFER – Solid copper construction maximizes retained weight