Very late response, but for anyone else reading this in the future... I have best results with 40 to 45 in-lbs. Do each screw a little at a time back and forth, till I get to 40 or 45 in-lbs.

The non-accustocks tupperware Savage stocks I prefer around 40in-lbs. 35in-lbs is ok for light recoiling cartridges, but 35in-lbs for a 300winmag mod 111 non-accustock was not enough to keep the receiver screws from loosening after a hundred rounds. So I do 40 to 45 in-lbs for non-accustock magnums.