If you're in a match that requires a reload a lightly charged 200 gr. There are a few cowboy action shooters who use full house loads because all matches are timed and recoil slows down your speed. Open tops are much harder to reload n a match. 45 Schofield that I loaded for accuracy which was not a fill house load and had no issues with them. Supposedly open top revolvers like the 1860's should not use full house loads. Some had to have the cylinder hand replaced to make the new ones work. You used to be able get a modern replacement cylinder to use in your old Colt and use full house loads. 45's probably shouldn't use full house loads either. I'd follow the conversion manufacturers instruction with loading. The lead splatters and normally lands at the base of the target. FMJ's crater the steel which sends ricochet in all directions including back at the shooter and bystanders. Jacketed ammo and close range can come back at you.
