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. Buffalo Bore uses a flash suppressed powder so you won't become blinded by your own gunfire in the likely event you drop the hammer in a low-light defensive situation. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases. The 45 Super is externally/dimensionally identical to 45 ACP or 45ACP +P and is designed to be used in 45ACP semi-auto pistols that have been fitted with stronger than normal recoil springs and a shock buffer, plus a couple of other modifications. While you can shoot 45 SUPER out of some stock 45ACP +P pistols such as the Glock 21, HK USP, or the full-sized all steel 1911, you will batter your pistol if you do not have them modifi...