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. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases. In order to make this cartridge meaningful for self-defense, Buffalo Bore designed hard cast (not soft) bullets that will not deform on impact and will maintain their flat nose profile as they penetrate through muscle and bone and because of their flat nose, they crush (not slip and slide) through mammalian tissues, doing considerable damage along their path. These bullets are alloyed and lubed properly so they will NOT substantially lead foul any normal barrel. Using modern powders added velocity and remains within the SAAMI pressure limits of 15,000 PSI. The result is a fairly lethal cartridg...