Double-boiler
I make paper cartridges out of typing paper. It's stout, coated and burns quickly. I add 22 grains of powder, firmly tapped into the tube, a couple grains of grits, lubed wad and lubed ball/conical all finger compressed tightly. The paper tube is tapered and about .380 at the open end, so the conical's NEED to be lubed to insert them without damaging the tube.
I don't use/need lube over the ball/conical as...
1.) the powder is encased in the paper tube, thereby leaving no microscopic powder residue along the chamber sides (that would facilitate a chain fire).
2.) the paper extends the full length of the lead bullet, while remaining open (not fully enclosed), with the grease from inserting the wad and lead coating the inside of the paper.
With the addition of Treso's and a pinned hammer slot, the revolvers remain chain-fire and cap-jam free.