First I ran a bore snake through, then I pushed patches soaked in the Frog Lube through. Would alternate wet/dry a few times then wet again and let it sit. Then I ran a brush through, then one of those mops and then another patch. They have all been coming out black to varying degrees. The rust colored stuff is still there.

I'm not sure if Frog Lube would turn the copper blue on the patch or not. Perhaps I should use something else? Is it possible I got a bad barrel?