Buffalo Bore Ammunition Pistol 45 ACP +P 230 Gr Jacketed Hollow Point. However the greater pressures and power of the +P ammo will give greater slide velocity. If shooting more than a box or two of +P ammo consider replacing your recoil spring with a Wolf Spring that gives roughly 4 to 6 lbs more spring weight than factory stock springs. Specifications for Buffalo Bore Ammunition 45-230/20 Pistol 45 ACP +P 230 Gr Jacketed Hollow Point: Manufacturer: Buffalo Bore Ammunition Caliber: .45 ACP Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 230 grain Cartridge Case Material: Brass Muzzle Velocity: 950 ft/s Application: Protection Primer Style: Centerfire What is Buffalo Bore Ammunition 45-230/20 Pistol 45 ACP +P 230 Gr Jacketed Hollow Point good for? The manufacturer says that it is good for protection.