I poked one into my stock today.
For some reason I never liked the hole in the middle of a drilled one, so i made my hole without. Of course I'll keep it filled with grease, but I like it much without the pilot/center hole.
I've been refining the architecture of my TN elk rifle. Raising the rear of the lock panels, raising/refining the cheekpiece, adding a touch of hollow to the comb, general thinning of wrist and butt. And poking a hole--a flat bottomed hole.
After finishing (again) I'll beeswax the hole before adding grease (tallow).