I may have to change my line of thought on this. The hunter that intriduced this to me did say that it was for Mauser actions.
Here's what I just found,
If it's a Mauser-type action, the bolt shroud wing safety actually locks the striker in the rearward position via a cam on the wing safety and a corresponding notch cut in the striker tail. That's about as reliable as one can make a safety, short of leaving the chamber empty.
Anyway, I have tested it numerously in all my guns but know now an accident is possible. Not 100% foolproof.
