I shoot nothing but black from my 1894, and clean-up is a breeze. Lee makes a mould especially for the .38-55 that works great in my .379 bore. I load 48gr. of FFG through a 24" copper drop tube, then a thin wad cut from a cereal box. The powder is then compressed with a hard cast bullet, turned down so it slips right into the case. After compression, I push the case mouth into a thin sheet of beeswax, then put in a wax paper wad cut from a milk carton. The bullet is seated, and lightly crimped. The rounds go off with a nice "CRACK", leave very little fouling, and will hit the 200m. gong with all 20 rounds, no cleaning. The action stays nice and clean, and I always stick a folded piece of cardboard in the open action before cleaning. Then one patch soaked in cheap Fields window cleaner, a dry patch, and a few passes with a brush soaked in Hoppes #9. Dry patch, then oil. Always degrease the bore before shooting, as any trace of petroleum can make the fouling hard. I lube the bullets with 50/50 beeswax and Crisco. Don't use toilet gaskets to make lube, most of them are now synthetic beeswax. (Synthetic=petroleum)