I believe the only thing we used that was original was the action and trigger.
In my opinion, the rifle, before we rebuilt it was somewhat of a "custom" rifle. The 22" 7mm-08 bbl was not factory, but the origin is unknown. There is only the 7mm-08 stamp just forward of the receiver.
I also believe there was some action work previously performed, as well as trigger work. On my trigger scale this trigger breaks at exactly 2lbs, everytime.
The above poster is correct in his assumption of having a "remage" bbl now. I built a 7mm mag Rem 700 using a Criterion remage bbl a few months back, and it seemed to impress. First 5 rds of factory ammo went 3/4 inch. This was basically a stock Rem700 with just the new bbl. No fancy stock or scope or action work mind you. My first reloads using 168SMKs basically shot the same, and my second load would shoot under half MOA. It was an impressive shooter, but not the kind of recoil that I wanted to deal with for extended shooting sessions, so I sold it a few weeks ago.
I think the OP chose the Criterion is probably because of that rifle. Hes seen my struggles with my McGowan barreled 6.5 creedmoor and erred on the side of safety. Nothing wrong with my McGowan bbl, as I have shot in the .1s and .2s, but it was a real struggle getting there. It seemed that Criterion bbl was a shooter from the get go.
I digress. It was a fun build, and I am sure after hitting the range this week that the OP will be happy.