They may be common ,but i've just never seen these before.
I know their not old.
Would like some input on them.

A guess is there are kiln shots, used to loosen deposits in industrial sized units!.

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14 S&W Revs none with locks!

Those 3 000's seem to indicate triple ought buckshot.......maybe Russian

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A Snider squibbed n the Jungle

The lack of a roll crimp makes me think they are not meant for firearm use. NYlakesider's guess sounds good and I'll toss in another guess. They used to use a similar type cartridge to start radial aircraft engines, perhaps?

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Stay safe people!

Before the advent of plastic shells, military units were concerned about paper shells taking on moisture, swelling and thus being unable to chamber a round when needed. To overcome this concern, they went back to what was originally used with old black powder shells, brass casings. I believe these were still in use up into the 60's-70's. I don't recognize the head stamp.

I have a few remaining from hundreds I bought back in the early 1990's for use in CAS in a double barrel 12 ga. The cases are steel with a copper wash and are in fact Russian in origin. The ones I have left have the identical head stamp. I bet the 92 is the manufactured date. Mine have a "3" on the plastic top wad, which is the shot size. I had to reload with smaller shot to meet CAS/SASS requirements. These were fun to shoot, somewhat more "authentic" in matches than plastic ammo, and got a lot of attention. Other shooters wanted to keep the empties, which was okay with me because they took, IIRC, an odd sized and perhaps Berdan primer. Definitely not US military, kiln shots, or airplane engine starters. And they are not brass.

Seems like you got it.....Just to check I put a magnet on it and they are steel under the copper.
I picked up a dozen just because the price was right.

Brass cased shotgun shells are not uncommon in the world of Cowboy Action Shooting, in fact they became so much in demand for those shooting in the black powder classification that they were brought back from obscurity, and Magtech is now making them to SASS specifications in all popular gauges.

What do those shells measure out to for OAL? They look long for standard 12 gauge.

The first thing that came to mind on the head stamp was Kynoch... but doubtful.

Difficult to determine what they might be given the widespread sporting and industrial use of 12 gauge loadings. You might need to open one up to see if has shot or is power only, which would clearly be a non-sporting application.

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Conrad
SWCA #1830 SWHF #222

I think it's a Coffman device, an engine starter, filed with cordite to turn over aircraft engines from the 1930's.

Probably not a good idea to put into a shotgun unless you want to tie it to a tree and pull the trigger with a stick.

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Back to back World War Champs.

I know for a fact their not starter cartridges r,starter cartridge is a blank,no shot in them,these have shot.
I have some starters

These are not brass. Copper over steel

If there is shot in them, wouldn't they be a lot heavier than if they were filled with something to start an aircraft engine? I would carefully take one apart to be sure though.