Buffalo Bore Ammunition Buffalo-Barnes Lead-Free 45 ACP +P 185 Gr Ba. The 185gr. hollow cavity Barnes all copper bullet mushrooms readily and still penetrates deeply while giving the low recoil and high velocity of a light bullet. This helps fast sight acquisition for quick/accurate follow-up shots. Expect roughly 13 to 14 inches of penetration in flesh and bone. This load utilizes a low flash powder which gives an important tactical advantage to the shooter. Specifications for Buffalo Bore Ammunition 45-185LF/20 Buffalo-Barnes Lead-Free 45 ACP +P 185 Gr Ba: Manufacturer: Buffalo Bore Ammunition Caliber: .45 ACP Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 185 grain Cartridge Case Material: Brass Muzzle Velocity: 1150 ft/s Application: Protection Primer Style: Centerfire What is Buffalo Bore Ammunition 45-185LF/20 Buffalo-Barnes Lead-Free 45 ACP +P 185 Gr Ba good for? The manufacturer says that it is best for protection.