I made one from a old brass key. There was just enough material that I could clamp it into my mill and get it a pretty good fit and pinned it firmly in place and shaped correctly.
Shot it yesterday with my 200gr "bison" loads and removed about .025 off to get it where it needed to be on my sight. I have plenty of up and down should I change loads. It is zeroed at 200yds and groups about 3 or 4" inches at 200. Should get better with me getting more used to the peep sight. If some one wants pictures I can text them if you shoot me a PM.
