I do not understand why anyone would waste perfectly good propellents and primers shooting 200gr bullets out of 45COLT pistols.
As a matter of information, I have just begun loading some 255 gr. SWC with Winchester AutoComp powder. Tried 7.8 grs. Saturday, estimated to be about 860 fps. Just loaded 8.0 grs. today for estimated 875 fps. Pet load for light loads so far has been 8.0 grs. Winchester 231, or HP-38, which is one and the same, I think.
Having difficulty finding Winchester 231.
Bob Wright