Finally took this rifle with the new Criterion barrel to the range yesterday and the bolt wouldn't close on a round. When I first tried the bolt on receiving the rifle after blueing the bolt closed hard initially on an empty chamber but loosened up after a few tries so figured it was just the blueing in the lug recess increasing tolerances slightly.

I compared this bolt with the the bolt from 407052 I posted in the Military section and extractors and their reference to the bolt ends look identical.  I tried the bolt from this one in 407052 and there was no issue but when I tried the 407052 bolt in this rifle it wouldn't close on the empty chamber.  I put about as much pressure on the bolt as with the initial try with the original bolt which finally worked in but didn't want to force it any more than that with this bolt.

The extractor lines up with the cut and bolt closes on an empty chamber. The relationship of case rim to extractor cut looks to be about the same on both rifles so there appears to be enough space for the extractor to jump  the rim but isn't happening.

Checked an old thread on Criterion barrel headspacing that had a nice close up of a case in the chamber but the barrel was not attached so was of minimal help.

I would hate to have send it back if there is something I'm overlooking so any insight or suggestions to check something else is appreciated. I can take pictures later today when I have more natural light. Anything particular views that might be helpful?