I have been reading with interest the discussion about barrel damage (when on the subject). I have several SxS's that are pitted to varying degrees.
I have also been looking at a number of advanced epoxy products that have been developed for industry metal repairs, most have high temperature tolerance and are machinable.
A barrel could be "super cleaned" of all rust and oils etc. by electrolysis or other means then coated with a pore filling coat of epoxy.
The tubes could then be honed straight thus leaving the pores and pits filled. I figure plastic wads will pass over the repairs without damage.
I think I will try this sometime......
