I think the XCR is an accurate rilfle. But nothing is that accurate. I too call Bulls**t.
With no bags, just a bench and 55 fmj ammo at 50 yards I get 2.5" and 100 yrd 5.5" 10 shot groups. I know most of this is me and some is the trigger. I'm sure the gun is way better than this and I will prove it soon enough, when I get bags, but the trigger makes sub MOA impossible. If you can get MOA out of the factory trigger, than you are either an olympic class shooter or bulls**tter. I wonder which is true.
My best guess is that my XCR is probably good to 2 MOA with well matched factory ammo. If you can get a custom trigger improvement you may be able to do better, but I doubt it.