Loaded with the Barnes Triple-Shock X (TSX) Bullet, this round offers devastating results on varmints. The Barnes TSX bullet is made of 100% copper and contains no lead. When the bullet expands, four razor-sharp cutting petals are created, allowing the bullet to penetrate farther through tough bone and tissue. These bullets usually retain 100% of their original weight. This round is no match for medium-sized game like deer, sheep and pronghorn, but can also be used on big game animals like elk, moose and grizzly bear.