Buffalo Bore Ammunition 7D20 Buffalo-Barnes VOR-TX 454 Casull 250Gr Handgun Ammo - 20 Rounds - This load utilizes the deep penetrating-for weight Barnes XPB bullet. This bullet will expand violently on flesh and bone and will penetrate roughly 24 inches, depending on impact velocity and the particular bones that may be struck. This load would be ideal for deer and black bear. Even elk sized critters can be taken if you stick with broadside or CNS shots and avoid those bad angle shots.