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 wound cavities for faster knockdownFeatures: ACCELERATED EXPANSION-Large diameter polymer tip delivers rapid impact trauma FLAT TRAJECTORY-High ballistic coefficient bullet with engineered boattail improves long range flight characteristics LETHAL ON BIG GAME-Devastating performance on deer elk and anything in between SUPREME ENERGY TRANSFER-Solid copper construction maximizes retained weight