Does anyone have any experience using the Gun Blue that you buy in a blue bottle? There is also a paste version available. Can't remember the brand off hand, but the same people who make Tru-Oil in the brown bottle.
My Gamo's blueing is rubbing off from all the cocking, although it does get an oil wipe after every session it's gone all dull and almost black now right by the front sight.
Suppose I could put some kind off plastic shrink wrap around the barrel to stop future dulling.
Any other idea's?