I have a X-Caliber and like it, but I don't think its in the same class as Bartlein, which is
More costly and a much much longer wait.

Bartelin is a cut rifled barrel and that's a hands on process and requires no stress relieving afterwards. They
do have to deal with the finish but again its a hands on process by craftsmen that know their stuff and its routine for them.

the top competitor use cut rifled barrels and most are Bartlein I believe, question always is can you shoot well enough to take advantage of that?

I gather Bartlein does not do pre fit , too bad, good to have it all done in one place..

Kreiger does do cut rifle and I think pre fit but could be wrong .