Stick with real black powder, the fake stuff will not work in a flint. Also use 3f in the barrel, and 4f or Swiss Nullbe as prime. You do not need a fizz--boom with a flint pistol. Never be able to hit anything. The faster ignition the better, that is why 3f in the pan is not good. :thumbsup:
Hope this helps, see ya, Jim/OH :hatsoff: