I have two of Rainier's ultra match barrels on 5.56 builds but just came upon one of their "match" grade 18" 308 barrels for a new build and was wondering if anyone had any experience with these. I'm debating on keeping it or selling it and picking up an 18" AR10740 contour from Lilja. Looking to build a mid range tac driver, 100-700 yards for tac matches, fun and maybe some hunting. Any thoughts or opinions??