So, I was talking to a friend about my Savage 110 6.5CM and he told me about having to send his LR 6.5CM back to Savage for the EXACT same issue you mentioned in your OP. So, my original comment was pretty off base. He said he knows someone else who had the same issue with their LR .308. Seems like this might be a common/"known" problem.

What did you end up doing about your rifle? It's been almost 10 days since your OP