Ordered a bartlien 3b couture for my creedmoor the other day. Got it in and I can tell ya, this thing is the real deal.
I didn't have a lot of time to play with it because of having to have shoulder surgery this week, but everything I run down it, it seems to shoot.
I chucked it up on the lathe and chambered it with a pt&g reamer, cut it off at 22 inches, I shouldered it in over a .30 recoil lug and a trued 16 action.
Shot some 140 bergers, amax and Hornady bthp's. The only powder I used was rl17. Shot anywhere from .15 to .35 five shot groups at 100. Tried some 123gr amax's shot them 5 in .25.
Makes it real easy to find a load, lol. Another thing that impressed me was the lack of copper when I cleaned it, like none. Never had a barrel this easy to deal with.