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. Owner of Buffalo Bore Tim Sundles on Buffalo Bore 454 Casull Ammunition: This load utilizes the deep penetrating-for weight Barnes XPB bullet. This bullet will expand on flesh and bone and will penetrate roughly 24 inches, depending on impact velocity and the particular bones that may be struck. The long-for-weight XPB bullet crowds available powder capacity in the 454 Casull casing, so we are not able to use a bulky flash retardant powder. You will notice a muzzle flash from shorter barrels, but as your barrel length increases beyond 7 or 8 inches, the flash greatly diminishes and of course the...