I have a 3" barrelled 1860 that I use quite a bit.
Mine likes either black powder, a wad and round ball or 777, wad and RB.
Groups about the same with both loads but the 777 seems to be a much stouter loading.
The addition of the higher front sight has helped a lot,(iit still needs to be filed down some.)
The other revolver in the photo is a clone 1862 Pocket Police, another sweet shooter.