I'm only a casual black powder shooter, one who bought a TC Hawken kit years ago only because it gave me an extra deer season. One of the hardest things for me to get through my head early on was the idea of using water for cleaning. Mix water and steel and that means rust, right? But when the water is hot enough, and it gets that barrel steel hot enough, it's amazing how quickly it evaporates. You can literally watch the water evaporate. And there isn't a better black powder solvent.