.303 Dummy or Drill. Possibly Dutch?

Can anybody confirm the identification of this .303 Dummy cartridge? I was told it may be Dutch made? It looks like stainless steel one piece construction with an 8mm hole in the base and 4 holes 3mm diam. drilled 14mm from the base. Non magnetic.
Headstamp is 760 .90 (or is it 06.? ) All answers appreciated. Ron.

This is a Tool cartridge for the Bren MG of the Dutch Reserve.

I thank you for this information.

A bit more information: