I’m going to be putting a 280 AI together and am think about having a 3/4” shank after the recoil lug. Will be using a Stiller Predator action and Bartlein 2b barrel. Anyone see any issues with this?
Yes.
It is a rem 700 clone and the bolt requires a counter bore for the bolt nose (the bolt nose actually enters the barrel)
Use a depth gage, measure the distance from the face of the action to the bolt lugs, add the thickness of your recoil lug minus, I believe .010.
With a standard thickness recoil lug your shank length will be in the ball park of .874. With a thicker lug, it will be longer.