Champions DuraSeal challenge series ammunition targets are designed to test the most advanced shooters. These targets replicate 50 BMG or shotshell ammunition and make perfect targets to shoot with the aid of a scope. It easily handles punishment from small and large caliber rimfire or centerfire rifles and handguns while keeping its shape and begging for more. Champions innovative DuraSeal technology is simply the most rugged and durable target material on the market today. The challenge series ammunition targets cannot be used as real ammunition.