So you "glass bed" this ferrule, aka pillar only on the rear, no pillar on the front, just bedding?
The Mk X's front action screw lug and the post on the front of the bottom metal mate together, essentially creating its own pillar. But, yes, I bed the front action lug recess in the stock and below about 2" in front of the action (e.g., beneath the barrel chamber).
Yes, I glass bed the ferrule into the stock. The ferrules I've used have a OD that is slightly under 3/8" (around .350") so, in the past, I've drilled or bored out with 7/16" bit. I've used a 3/8" bit before, but I found it too tight....pushing in the ferrule pushed out most of the bedding glass. I also drill from both top-down and bottom-up to try and ensure it's as straight as possible (you don't want that rear screw binding against the ferrule); if I take out slightly too much, the glass compensates.
