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Action Screw Adjustment Playing The Field

Vudoo V22s with 26" Bartlein barrel. McMillan Kestros stock. Winds 3-5 mph persistent and switching. Gusts 7-10 mph, rare moments of non-wind. Have been running with action screw torque 45 inch pounds front and back. Vudoo recommends 60-65 inch pounds, unless specified otherwise by stock maker. McMillan Stocks recommends 45 inch pounds, unless specified otherwise by action maker. Review of the forums revealed experienced shooters run 45-48 inch pounds front and back. I decided to try different settings to determine the potential effect. With the help of AI on the internet, (my coach and mentor), I have gained the following insight: 1. Adjusting action screws affects bedding pressure and contact points, vibration, harmonics, stress on the actioned barrel and how the stock reacts during the shot cycle. 2. Vertical Stringing; often uneven torque or distribution. Typically front screw or both screws. FIX: try tightening front screw slightly by 1-4 "/# , and/or ensuring rear screw is not over tightened. 3. Horizontal Stringing; often excess torque on rear screw or inconsistent bedding. FIX: try reducing rear screw torque by 1-2 "/#vibrationanalysis . 4. Large Groups (wandering POI); both screws under torqued, rear torque off or uneven bedding pressure. FIX: trial various settings with rear screw 5-10 "/# less than front screw. If PQP Holeshot action, with Rotex stock, middle screw 10-20 "/#'s to stabilize center. 5. Highflyer or Random Shots: lessen front and rear action torque front and rear 1-2 "/#s. Armed with that knowledge and recommended settings trial, and with a random 3 boxes of Center-X (same lot), I noticed a difference in group averages, with Front 50-Rear 35 setting and Front 48-Rear37 setting both yielding 0.27". This not in the 'great' category, but in the 'good' category, (for me very good). I used the Front 48-Rear 37 torque setting to shoot the USBR target. Not great but a good starting point. Future trials can start at F 50- R35.