thanks for the help all. the male thread on the breech plug to barrel, as well as the female threads in barrel and breech plug are all in perfect condition. I did run a 10mm x 1.25 tap in the drum hole just to be sure. Looks like all I need is a new bolster (drum). I can't seem to locate one. Dixie Gun Works sells them, but they are out of stock. Does anyone know where I can purchase one. Thanks