12-17-2012, 01:17 PM
Can't help you on your barrel question but you did get a good solvent for copper. I've been using it for quite a while and I like the fact I can soak the bore with a patch, let it sit over night, hit it with a brush the next day and a few patches later the barrel is clean. Nice and easy without much effort. Also there no chance of damage like with some other solvents.

