9mm Blanks?

[Larsen E. Pettifogger, SASS #32933]

At our last CAS shoot at Ben Avery Shooting Range these were all over one bay.  They are 9mm and the blue top is firmly crimped into the case.  Anyone know for sure what these are?  I have never seen a blank like these.

 

 

[Boulder Canyon Bob# 32052L]

GOOGLE found this.

http://www.setcan.com/simunition_ammo.php

[Presidio]

Apparently somebody didn't want them.

[Hashknife Cowboy]

Aren't they simunitions?

[Texas Joker]

Either simunition or plastic training rounds.