Buffalo Bore Ammunition Pistol 45 Auto Rim +P 225 Gr Wadcutter WC 20. It is the equivalent of +P+ 45 ACP ammo also known as 45 Super. This load is very stout but will not harm modern 45 ACP revolvers nor will these loads harm any post-war 45 ACP revolvers. Specifications for Buffalo Bore Ammunition 32C/20 Pistol 45 Auto Rim +P 225 Gr Wadcutter (WC) 20 B: Manufacturer: Buffalo Bore Ammunition Caliber: .45 Auto Rim Number of Rounds: 20 Bullet Type: Wadcutter (WC) Bullet Weight: 225 grain Cartridge Case Material: Brass Muzzle Velocity: 1100 ft/s Application: Protection Primer Style: Centerfire What is Buffalo Bore Ammunition 32C/20 Pistol 45 Auto Rim +P 225 Gr Wadcutter (WC) 20 B good for? The manufacturer says that it is good for protection.