All but (2) AR-10’s now have a wilson combat barrel. Word is at one time they sourced there blanks from er shaw but had to meet WC specs. I could never get a straight answer from either. I believe now it’s all in house.
My experience has been very positive. I plan to pick up a 260 Rem when they have there 30% off sale after thanksgiving. I would put them against faxon, BA, Rainier/Shilen. I had one issue with gas port on my 6.5 CM. So far a 308, 6 CM, and 6.5 CM are all consistent .75 MOA but only taken them out to 300 yds.
Specifically speaking to the 308, it did not produce groups better than 1.25-1.5 with top tier ammo. My hand loads cut that dramatically. I have found that out of the (3) 308’s all 18” SS Fluted none have liked 175/178gr. Everything has been 150, 155, 168. Also, all have preferred IMR 4064 over varget, which is annoying but I can live with it.
FYI, I determine accuracy in AR’s by 3 shot groups not 5 like bolt actions.