Spray with solvent hoppes no9, wd40 our what ever then let soak. 15 minutes. Over night better.
Next get your drill gun and your cleaning rod with bronze brush. On LOW speed run it through the barrel. This should help clear most of the crud. Your bronze brush won't like it much but your barrels will. Pays to hold them in a vice our suchlike. Oh and make sure you remove the stock and forend as you don't want all that oil getting into the wood.
Bookmarks