After wetting down a barrel with gun oil soaked on 0000 steel wool, I let the barrel sit for a while and then use a single edge razor blade, at a very small angle to the barrel, to "shave" off any rust sticking above the barrel finish surface. This can be done a couple of times, soaking the area to be worked on. The final treatment would be more 0000 steel wool and oil. The well lubricated blade, held at the proper angle, will not harm the original barrel finish, but will destroy the corrosion.

Last edited by Daryl Hallquist; 12/20/22 01:04 PM.