Fair enough. On the five rifles I shoot for at least three the amount of tension seems to semantically impact group sizes, with the apparent best setup being less than the full pressure tried. I do not think this is conclusive as I a strong believer that people shoot better with a rifle they feel confident in the setup.

Two point to PL’s comments,
He is a highly qualified armour with thousands of hours experience of mechanical fitting. I am relatively qualified electrical and electronic engineer, who mostly used a computer. I would hazard a guess that his basic feel tightening a screw approximately as accurate a my torque rench.
I don’t think the military accuracy requirements where as exacting as Morden target shooters.