Oddly enough, the last pistol cartridge I'm getting the caliber conversion kit and dies for is......45 ACP. Strange right? Well, I never shot a volume of them enough to really justify it. And, honestly I don't plan on it now....but maybe this will be an egg/chicken situation and I'll wind up shooting 45 ACP more now that I will begin to load for it. Bullets I have for now are some Rainier 230 FMJs I have federal LPPs and a huge lot of once fired Federal brass. Powders I have that would suit this application are W-231, Power Pistol, BE86 and CFE Pistol I don't need anything specific out of these other than to be accurate as possible and to function in both my 1911s. One is an M1911A1 from around 1943 and the other a Colt MK IV series 70 mfg around 7 years ago. My first inclination from glancing at some books is to start with W-231 @ 4.5gr with these seated to around 1.250" and I'll likely work up a bit and just wind up settling happily just north of there. (My hypothesis) Any suggestions?