Introduced in 2007, the Varmint Grenade by Barnes has rapidly become one of the most popular varmint bullets around. The hollow-cavity, flat-base bullet features a copper-tin composite core surrounded by a guilding-metal jacket. The bullet remains intact at ultra-high velocities, while its highly frangible core fragments explosively on impact. Produces instant fragmentation, virtually vaporizing ground squirrels and prairie dogs, even at long range. Expending its energy early, the Varmint Grenade seldom exits large predators like bobcats and coyotes, leaving valuable pelts virtually undamaged. While these lead-free bullets are environmentally safe, they're deadly on prairie dogs and other varmints. The unique, instantly frangible core ends worries of ricochets.