The popular and powerful Winchester Power Core 95/5 Ammunition is made to have the controlled expansion, deep penetration, and incredible accuracy hunters demand. The solid 95/5 copper alloy construction is lead-free and strengthened with zinc. When hunting big game, you need ammo that expands for stopping power; Winchester has spent hundreds of hours on research, design, and testing to guarantee deadly impact. Heat-treating process makes the bullet tip more malleable for more expansion and weight retention. The innovative power-core cavity and protected hollow point has a substantial frontal area for massive energy. Comes in a box of 20 rounds.