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What is THIS ammo??

Thanx for the welcome! Not really ANY primers there, just small holes that LOOK too deep to be "fixed" primers, but I could be wrong. I THOUGHT they might be some sort of grenade launcher rounds, but, out of a 1911, I doubt it. SOMEONE old military buff will recognize them.
I think that is a mortar primary charge. Morton shells come with the explosive charge and secondary charges all built in. To arm the shell you screw in a fuse of one sort or another and add the primary charge then drop it down the tube.

I believe this because of size, shape, and packing in the box.

I am willing to accept other alternatives.
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