Green Plastic 5.56mm NATO

This is not really in my area of interest so it may be a dumb question but any idea who made this round?
Scan0072x green
It’s hard to tell from the picture but the base is brass and there is a crack in the plastic above the base.

Thanks

Paul

Looks Swiss to me but no proof

Paul, I hade a full box of them…and all split off at the base after time…its definitiv Switzerland…
PP

yes Swiss