Buffalo Bore Ammunition 32B20 Personal Defense 45 Auto Rim +P 200Gr Handgun Ammo - 20 Rounds - This +P 45 Auto Rim load uses high quality Starline brass with flash-suppressed powder to shoot in the dark without blinding yourself. 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.