I bought a used rifle @ a dealer . It was an old gun with the usual crusty metal finish , which I
started to clean with an oily rag . As soon as I started to wipe it a black liquid came off leaving a surface of polished metal .
It was ,,, "Stove Polish" . First time I have seen that. I cleaned it to do a cold blue of all the barrel / action.
It turned out great looking . Still happy to get a rare Cooey .
It was a 1928 Canuck .410 . It is a typical Canuck with a one piece receiver / .410 barrel . ,,,,,,,,,,,,, IF.