Buffalo Bore Premium Supercharged 300 Win Mag 180 grain Barnes Tipped TSX Lead-Free Rifle Ammo, 20/Box - 55B/20

This is a full power+ 300 Winchester Magnum load that is designed to shoot targets such as deer and sheep well past 500 yd with precision, yet the bullet will give ample penetration for large elk and moose. This load can also be used for such tasks as 2000 lb bison, but only if you stick with broadside/double lung shots.