I thought you were talking about a different Pin Buster bullet, but alas, this is merely the common 250 gr. RNFP that is routinely loaded in the .45 Colt. Anyway, I have done quite a bit of loading of 250ish gr. bullets in the .45 ACP, mostly for my 625 revolvers, but also my Glock 21. Cartridge OAL will be your most important consideration in the auto, and you'll need to load short enough that they feed through the magazine. Be very conscious of pressure when you do this. I found that 231 is an acceptable powder, but Power Pistol is better and more forgiving. Actually, I recently loaded up a bunch of this very same cast bullet in steel cases, just to get rid of these bullets and the steel at matches where I am too lazy to pick up my brass. I loaded them to 165 Power Factor, which will probably be lighter than what you want. I never did a whole lot of pin shooting, but I found that the 225 gr. FP at 900+ FPS was satisfactory, and that's what I'd use if I did it again.

Dave Sinko