Nice rifle and cartridge! Get a torque wrench if you want to drill down on the variables. I torque my action screws to about 30 inch lbs but you could go lighter for sure. It is an iterative process, shoot groups at 25, at 35…. up to 40. Then try 25 front, 30 rear and swap. The point is if all else is equal, the tension in the bolts is the only variable. Now if you bedded the action the torque is not the best fix. Good luck and I may be wrong, if dog says otherwise then listen to him.