WildRose
Well-Known Member
Hence the reason they are supposed to contact either the screw head or bottom metal depending on the rifle or a ferrule that the screw and pillar both are in contact with.To keep from crushing wood fibers, cracking stocks, etc.
The ideal is to have metal to metal between all three.
Thus you ensure the same points of contact every time and the ability to always get the torque exactly the same.
Anything softer introduced between the action and pillar is going to lessen that repeatability and consistency.