Heard lots of good things about those barrels, but never sprung for one. (yet) Seems like you should be able to get much better than 1/2" MOA groups with it.
I have an old 25+ yr old 110FP in .308W.. Out of the box that rifle just sucked. Well the stock made it suck. Wouldn't shoot ANYTHING. Then I bought an inexpensive Choate varmint stock for it and it got much better . Lastly, it all boiled down to practice and experimenting with loading. It shoots OK with almost anything, but my old rifle with the original factory barrel shoots 175 gn SMK's in old LC74 cases I picked up off the M60 range 30+ yrs ago, Std Federal primers and 39 gn's of IMR 4064, under 1/4 MOA. If it had your barrel, I'd expect it to be even better.