A 15/16" straight octagon barrel blank with a .50 caliber bore rifled with a slow twist, approximately 1 in 72". Blank is 42-1/4" long with 5/8-18 threads at the breech. The muzzle is stamped .50 .014, which appears to be the groove depth. The outside finish has some scattered brown from long storage. These barrels are unmarked as to a mfg. For use with black powder only. We have two examples at this price at the time of listing.
