I am in the process of breaking in an AR-30 according to Armalite break in procedure. While it is too early to get a true reading on it's accuracy potential (have not worked up loads) it is truly a pleasure to shoot. I am astonished at the muzzle brakes ability to reduce the felt recoil from a .338 Lapua Magnum to that of a .243.
If it lives up to accuracy claims it will be a real pleasure to shoot in matches.