whatzit?

[Gussy]

Whatzit about .38 cal smaller head, no rim

[Don McDowell]

I'm going to take a WAG at it, and say it's one of those gallery load cases. Using just the primer and just a grain or two of black under the bullet.

[Gussy]

Only a very small relief hole between front and back sections. Not enough to fire anything.
I'm thinking it designed for a 9mm semiautomatic and will make the action function with a very low powered load

.

[Don McDowell]

Might be the case.

[Lumpy Grits]

Does the larger body slide on the smaller shaft?
Is it brass or steel?
Std small primer size?
Gary

[Kurt]

Jim I have a couple like it I picked up at the range. The special opp guys train with their virgin of a paint gun

[Gussy]

Outer barrel, large part is aluminum. Inner part is steel. Appears to be a std primer.

I'm going to see if it will fit in my 9mm. Looks to be about that size.

[Lumpy Grits]

Looks like a 'perimeter' alarm cap. Also looks similar to what is used in some flare guns & smoke signals.
Where was this found?
G.

[Gussy]

If it has any projectile, it would not be much. Note the 3rd photo it has a very small hole between the primer and front. I could barely get the point of a needle in it when I was clearing it.

[Kurt]

I looked for the ones I picked up at the range. I have a empty and one with a blue plastic projectile in it unfired.