I shoot a .58 cal Hawken rifle. When I clean it, I use a shotgun bore brush, it has brown colored plastic filaments and I can't remember if it's 12 or 20 gauge but its the right fit. I take the barrel off and nipple and dump it in the garage deep sink, pour in hot water and soap, and soak and punch the bore (I have goex and pyrodex, but the crusty knowledgeable guy with a shop in san jose cursed at the pyrodex and sold me something different so I'll use that. I ream the chamber and punch the bore and it seems to work very well. I then use the compressor to blast air through the bore to dry it up, then I punch it with an oil gooped patch. The shotgun bore brush does not deform over time.
With my 1851 Navy and Lemat, I remove the cylinder and the nipples from that. I put a bore brush on the end of a drill and I ream the crap out of em, I do that also with my Vaquero. Because there is always this gnarly ring of powder right where the end of the casing is, and its always the toughest to remove.
Back to the rifle. I got a ball stuck in the barrel at the last shoot, I had 6-7 friends round robin shooting that thing, the people love shooting black powder. I had just punched the bore with a patched jag (after like 25 rounds) and the next ball would not seat. It broke my original ramrod (forgot my fiberglass that day). The RSOs directed me to a gentleman also shooting black powder, also a .58 hawken. He shows me "look at this minute crack near your chamber.. you can unscrew the back end off the rifle and push that ball out with a ramrod." I didn't know that part removed, it looks seamless until you really take a good look. I have just been enlightened about KANO Silikriol. They can no longer sell it in Kalifornia, but I'm able to get some. It's not their "bore cleaner" but it is automotive super-wd40. I figure it's going to take that to get that removed, and then I'll finally be able to inspect my rifling. However I dont know that I'm going to go through with it as I get the feeling my method of cleanup gives me good results from visual inspection of the outside, as well as the feel of the balls and conicals as I load and seat them.
On that note, I think I'm going to go outside and cast some conicals.