I just picked up a Ruger 10/22 with a 25inch stainless Sporter barrel made by green mountain in a Magpul x22 stock, first shot 1.5 inch groups at 50yds, so looked at action screw, it was over 50 inch pounds and there is a barrel support that was adjusted high up, when I took action screw to 20lbs and adjusted barrel support so it didn't touch my groups got around .5 inch's and had to adjust scope dial one full turn up. Was happy with groups but they kept grouping in different spots so I bedded rear of action and not so much movement but still some so all I can figure is barrel to receiver, I took barrel off, was pretty snug and thinking of using 638 locktite to lock it in when I put it back together, also ordered v block to take droop out, wondering what you guys think but let me add another idea I had, what if I get a little longer screw that holds scope base down over barrel and drill a small shallow hole into barrel so it can help lock that barrel in place by the screw going slightly into that shallow hole, anybody done it? Bad idea, let me know.