Looking into building a RECCE AR15 using a 13.9" Criterion. Have been recommended Roscoe, BA, and Proof Research on the high end. Would like to keep the rifle barrel between 13.7 - 14.5" and looking to get under MOA at 100y with 77gr factory ammo it likes. Plan on taking it out to 600 yards max. I understand CL barrels aren't as accurate as nitride or SS, but looking to run this hard suppressed 50% of the time and live in humid Texas so corrosion resistance is a concern. That and I'll be using this in classes, and some light competition.
Big question here is, what am I gaining by going with Proof Research at 3x the cost for a CF 14.5" besides saving sub 4oz and what am I losing by going with BA, Roscoe, {insert other barrel brand} by saving 1/3 the cost? Criterion's CORE model jumped out to me for the gas port size, weight and people here have been getting good results.