NOT KNOWN DETAILS ABOUT SMOKELESS POWDER

I can get conversion cylinders for all of these in .45LC, but the 1858 can even be .38SPL and also the 1851 .38LC. Since my rifle is .38SPL I'd ideally want the pistols to get in the same cartridge, on the other hand I don't automatically want to get two 1858s and determined by my analysis I'm not specifically chomping for the little bit to try sho