Buffalo Bore Ammunition 20F20 Buffalo-Barnes 38 Special +P 110Gr Handgun Ammo - 20 Rounds - This is a deep penetrating, all copper expanding 38 Special +P load. Depending on individual impact velocity, expect between 12 to 14 inches of penetration in flesh and bone. Buffalo Bore was able to engineer a flash suppressed powder for this load and therefore a huge tactical advantage as most civilian shootings in the US occur in low light when the criminal element is out and about.