Since I posted last I did dig up a little info on the builders name on the barrel, Morgan L. Rood or M.L. Rood, he gunsmithed in Calhoun Co. Michigan, around 1840-50ish and ended up with a store in Denver I believe the barrel is dated 1856 or 1866 I can read the date except for the 5, I believe he died in 1881, after pulling the breech plug, which was well greased the last time it was installed, I scrubbed out what looked like hardened grease of some sort to find a very nice preserved .40 cal. 1:32 twist bore, barrel is 1 1/8 atf and 32" long, totally shootable I think, the lock is junk with missing parts so either repair or replace before it will ever shoot again.