The Ultimate Insurance Policy for the Deep Woods. When youre in country where you aren't at the top of the food chain, you need a round that doesnt quit. The DoubleTap DT Hunter 230gr Hard Cast Firearm Ammunition is engineered for one thing: maximum penetration. Unlike standard hollow points that can flatten out on thick hide or heavy bone, this Hard Cast Firearm Ammunition projectile is designed to punch through the toughest barriers and reach the vitals of large, aggressive animals. Whether its for trophy hunting or high-stakes trail defense, this is the heaviest 10mm load available to keep the biters at bay.