Jack, do a search on corrosion x or big 45 or look up the thread "what to do about a Parker gun?" and you'll find the products I use to remove lead fouling from the bores. Even dry with no solvent the Big45 removes all lead fouling and will not affect the steel. I used it on my 28 ga. VHE and got a combined almost 1/4 teaspoonful of lead from the bores of this gun. I was so shocked at the amount I got that I put a magnet to it to see if I had removed steel in the process... it was all lead.
Same method you use incidentally, wrap it around a copper brush and use your electric drill.
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