Somewhere on the internet I saw a video about making paper cartridges for percussion revolvers in which the guy made straight tubes, sealed the bottoms with some sort of red paper and used paper or cardboard wads between the powder and the lubed felt wad to prevent powder contamination by the lube. I believe he used conical bullets. I wanted to go back and re-watch it, since I had to log out to do something else before I had a chance to take any notes. Now I can't find it again. Has anyone here seen it and if so, where the heck is it?