I stumbled onto an old underhammer 50 cal. a while back. It has absolutely no markings whatsoever on it. Research tells me many gunsmiths produces these. The outside of this gun is nice but the inside of the barrel looks like a plowed cornfield. After a month of soaking and cleaning I've come to the conclusion that I'm wasting my time. I want to refurbish this old relic and shoot it. Does anyone know of a place I can get it relined?