OK, I have an old 1930s double which has probably never been opened for service.
The screw are perfect, but the outside of the gun shows minor corrision. It function fine, but I hope to shoot it a lot and the internals undoubtedly are dry at this point. So I'd like to fully inspect and get some fresh grease and oils inside it.
I have a very good old gun guy in town here who has used a penetrating oil and low heat to try to free the screws. He has good tools. One screw moved, three haven't. No damage yet. The one screw that was removed showed substantial rust.
Does anybody have any "tricks" for getting frozen screws to move?
