This will be the biggest hurdle. Preset specs from the factory sold in bulk. No plan B likely for a year until volume impresses the factory. I have spoken to the importer and they aren't too swift on changing things on the fly.
GT, you are of course correct but this is an econo build with the end user looking for more variety and better then factory accuracy. If the action goes through a full meal deal tune up, wouldn't the barrel threads get changed in the process?
I suggested lapping so that at least the issue of lug contact would be addressed with minimal down time to the action.
The Savage will always be the better platform for this type of barrel swap but at least now, Rem owners can join the fun.
Jerry