12.7x99 PSD headstamps, made by ODL?

I found some references to PSD cases made by ODL. Is there a way to ID these? MAYBE from primer sealant from the looks in Fuchs?

I’d rather suspect it to be the other way round. Where does this info come from?

Fuchs’ book.

Here’s the NZ chapter

You will note in the wording regarding the ODL mfgd. drill and blank rounds is that the basic cartridge cases used are PSD, from So. Korea.

ODL also remanufacture surplus ammo so could come up with a variety of headstamps.