I had a bad experience with "home brew" bore cleaners. I tried the hydrogen peroxide and vinegar mix to remove some stubborn leading. It worked quite well, but only if used sparingly and for short periods of time. But my "home brew" of ammonia added to commercial bore cleaner is safe, won't affect bluing or etch the bore, and does remove copper...
After screwing up my Dan Wesson's bore, I'm extra careful what goes on/in my guns...
After screwing up my Dan Wesson's bore, I'm extra careful what goes on/in my guns...