Power Pistol is a fairly slow powder for the .45 Auto and will probably deliver high velocities with heavy bullets BUT, like said above it also produces A LOT of flash. A similar powder to Power Pistol is AA#5 which was specifically designed for use in the .45 Auto. I've used it in the 45 and it produces some "hot" ammo which will probably surpass the velocities delivered by Power Pistol. That said, my favorite powder for use in the .45 Auto is W231. A charge of 5.5gr under a 200gr or 230gr bullet is hard to beat. W231 is a clean and accurate powder that I wouldn't want to be without... I highly recommend W231/HP-38 for use in the .45 Auto.

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