Buffalo Bore loads their ammunition up to maximum SAAMI specifications, which delivers devastating performance on a wide range of game. Please note that this ammunition is not intended for older guns. It is made for modern firearms only, as some of the ammunition could damage older and weaker firearms. The jacketed flat nose bullet is designed to mushroom at handgun and rifle velocities. It will penetrate about 18 to 20 inches in muscle and bone and is a great bullet for hunting small to average bear or hogs. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.