Our barrels are American made from the highest quality steel and machined on CNC equipment. Barrels are stress relieved and polished to 120 grit. The square bottom rifling is cut to a nominal depth of .012. 6 lands and 6 grooves. All barrels have a 60 degree crown. Barrels are center on both ends and each is threaded for the breechplug. No dovetails have been cut.