When I shoot black powder at the range I almost always put a patch in my mouth after loading. By the time I shoot the patch is moist enough to use to swab the bore using both sides of the patch. Then I reload and repeat. The good old spit patch keeps fouling down to a minimum. After about two groups (6shots) I swab the bore out with a couple of patches dampened in Turkey Tracks BP cleaner followed by an alcholol patch.