223 Cal, 1:9 Twist, 27” Long, 1.20” OD, 416SS, Turned on Center Barrel Blank. Button Rifled, Air Gauged, and Stress Relieved.
Posted by RWG on 22nd Feb 2018
I have used many green mountain blanks to include .17, .204, .224, 6.5, .30, .458 . Mostly ar builds and a few bolts. I am very happy with the price, service and quality. With a little careful bore lapping, so far everyone has been maximum of moa, and many sub moa with good quality factory ammunition! Currently barreling a 1886 miroku with a green mountain tappered octagon to 50-110. Review will follow! Thanks Green Mountain