A 1-3/16" straight octagon barrel blank with a .45 caliber bore rifled with six lands and grooves with a 1 in 60" twist. Blank is 40" long with a 3/4-16 threaded breech. This barrel weighs 9.2 pounds. The outside finish has some scattered brown from long storage. The barrel is unmarked as to a mfg. For use with black powder only. We have one example at this price.