I'm old school too. Clean out that rust as best you can with whatever works the best...then completely degrease your barrel of any trace of [bleep] petroleum products of any kind. Then season your barrel like a treasured cast iron fry pan with pure animal fat. If you don't have any in the freezer...I think Dixie gun works and maybe others sells rendered sheep fat by the pint. In the future clean with Murphy's mix above, wipe dry and warm and treat with animal fat....which by the way, is damn good for the stock.
Last edited by flintlocke; 03/05/21.
