I have a 700 ADL, in a .270 and I get nice tight groups as long as I am real proper about squeezing the trigger. I think it is too damn tight. I just posted on the Gun forum some questions about getting the trigger adjusted on this gun. I would guess that has some to do with your issue too. JMO.

I have a Rem Model 7 "youth" .260 for my boys and it had trigger work done. It shoots great tight groups.