[Unclenick]

The headspace gauges I own also have the ejector cutouts. I think it's pretty standard practice. They lack an extractor cutout, but a little effort on a grinder could change that.

Rereading my last post, I realize I wasn't clear that my comment on sending the gun to its builders had to do with achieving a match for a spare bolt's fit to the gun using the same tooling and sense of feel (gunsmith) that put it together originally. That way the same loads it likes best with one bolt will likely do well with the other. I wouldn't want to have to change a bolt in the middle of a match and find it wanted different ammo.