GSSP, I have a Model 70 Classic that I bought new in the 90's (New Haven gun) and it would do similar to what yours is doing. Well, I posted this on the Gunwriters forum few days. A guy on You Tube has a video I found some time back...."Floating a Rifle Barrel-Synthetic Stock" He took a detergent jug and cut a piece to fit under the front and rear action screws and then was able to slide a dollar bill up to the action. It tightened up my groups and now will shoot half inch group every session. Could not believe it. Pull it up and look at how he does it...might help.
