The Barnes Varmint Grenade has rapidly become one of the most popular varmint bullets around. Initially a bullet meant for military application with the hollow-cavity, flat-base bullet features a copper-tin powdered metal core surrounded by a guilding metal jacket. The bullet remains intact at high velocities in fast twist barrels yet still fragments violently on impact. Varmint Grenades instantly expend their energy, seldom exiting large predators like bobcats and coyotes, leaving valuable pelts virtually undamaged.