Though, technically, percussion revolvers can bark out a whole chamber full of powder, the best accuracy will be less than that. If yours has the brass (actually bronze) frame you need to keep the loads light since the frames softer material will eventually stretch under heavy, continuous recoil which prevents the cylinder from locking up solidly. Usually not dangerous, unless taken to extremes, but anything approaching accuracy goes out the window and they can start 'spitting lead'. This is a term coined many years ago when a by-stander got smacked by a tiny sliver of lead sprayed off from a poorly timed revolver. The shooter may not be conscious of it but "guy to the right" or "guy to the left" may notice and make unkind remarks about your lineage! :wink: :haha:
Most revolvers do better, fit wise, with #10 caps and some shooters use corn meal or muffin mix on top of a smaller powder charge to keep the ball near the cylinder face to prevent over ramming and less ball jump to the forcing cone of the barrel breach. Others use lubed fiber wads between powder and ball, it's sort of a shooter's choice. Little cone front sights are nothing to brag about and most of these guns shoot high (government's bright idea: "Hey George, even though cavalry fight real close, let's sight these new pistol guns to 75 yards!"). A little playing with them is usually the trick to getting the most out of them. Still, it's very satisfying to make hassenpfeffer out of the day's results! :thumbsup: