Great Data.
Nice rifle.
So I notice your recoil lug on your rifle is a different finish. Is this a factory barrel?
Remington Factory action, Remington factory barrel, PTG recoil lug, Timney trigger, stiller DBM and Manners stock.
Remington doesn't build one rifle at a time like a smith would. Barrels, actions and bolts are pumped out on separate lines. There's a guy who puts them together and sets the headspace by recoil lug thickness when paired with bolt size. Then it's off for marking and finishing.
That's all I did hear. My action was an original R700 Varmint from the 90's, notice the jeweled bolt, I bought a new take off barrel and then set the headspace with an aftermarket lug. I'm between .001-.002" over minimum headspace with this lug, based off headspace gauges and fired brass. Which tends to be a bit tighter than most factory built rifles since most will fail on a no go gauge but pass on a field gauge.