This may sound like a crazy post, but here goes. While cleaning my Finnish M-N the other night, I ran out of bore cleaner. The store was closed, so I mixed a concoction of Permatex hand cleaner, similar to Go-Jo (by the way, it contains ammonia) with some house hold ammonia 50/50. This made for a gel type cleaner that seemed to work well in removing the powder residue and the copper fouling (better than the store bought stuff). I was wanting an opinion from someone with more intelligence than myself about if this would damage the bore or if this is a dumb move to start with. I hope I haven't come across as too crazy, but this seems to work very well and is cheap to make. Thanks in advance for your thoughts.