I finally got the lead build up in a 40 S&W way down but not completely eliminated. I had a copy of a list of cleaners, lubricants, etc that I found maybe on this site. Anyway, you can make anything you want cheaply with normal products. Decided today to try this mixture of 50/50 vinegar and normal 3% hydrogen peroxide they said would remove lead buildup. Figured that for a few bucks why not try it.
IT WORKS. Couldn't believe it. With a few minutes soaking just whiped it out. Have to try and figure out how it works but unbelievably easy and fast. Followed up with clean patches and then CLP. And if you like vinegar smell that's a plus. Wonder how it would be on a salad with blue cheese?
John