Thread: Repeat until patches come out clean

I know many folk on here tend to keep the barrel cleaning to a minimum, but lets say you want to take the bore back to bare metal and get all the powder out. In my case they are all chrome-moly rather than stainless. A bronze brush and No.9 doesn't seem to cut it for me. I can run the brush through a dozen times and then clean out with a patch and it always comes out pretty dark, no matter how many times I repeat this sequence. Same with JBs, always produces a black patch.

( The copper I have no trouble with, removing it with aqueous ammonia. This clears it pretty quickly and has never caused me a problem as long as all traces are removed once the copper is all out.)

Whenever I read articles on bore cleaning they always involve a solvent swabbing and (usually) brushing sequence, repeat 3-4 times and then miraculously the final patch comes out clean, job done.


What are members views on this please? Is this material off the bronze brush ?
What about with the JBs - eventually steel off the bore rather than powder residue ?