I've shot 2 boxes out of my 308. Very good factory ammo. I've read there are folks using it in comps. Never ran it through the crono though. Not sure why they don't make a 300 WM.
Looking forward to the report on 5.6 creed not up to speed on that one.
I can report that the 5.6 Creedmoor is awesome! If you measure the bullets they do measure 5.6mm. I usually refer to it as the 22 Creedmoor Its my fave coyote gitter....