I think I would start with a brass brush and some mineral spirits. You could use Hoppes but a gallon of mineral spirits costs less. I know a guy who is always looking for barrels to cut down and make Mini Garands. I would email him if you are interested.

kwg

For liberals and anarchists, power and control is opium, selling envy is the fastest and easiest way to get it. TRR. American conservative. Never trust a white liberal. Malcom X Current NRA member.