Full contact on the rear surface perpendicular to the bore to resist the rearward force of recoil.

No contact on sides or forward perpendicular face to ease assembly/disassembly.

No contact on bottom to eliminate upward torque on bedding system from heat expansion or debris under lug.

Or something like that.

"If it wasn't for the pu**y and the prestige.....nobody would want to be a gunsmith."
MColeman