Shell identification

HappyWarrior

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Aug 1, 2020
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MidWest
Might be a glass breaker used to knock glass residue off the interior of glass melting cruciables.

Usually 8 gauge.
 
Joined
May 4, 2010
Messages
19
Definitely not 8 gauge. More like 20. It tapers pretty much. I will mic it and get some dims. I am having a hard time conceiving the purpose of the primer inside and how it would be detonated. Or how the shell chambers for that matter.
Initially I thought it was a type of bird control round.
 

djfergus

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Joined
Dec 25, 2015
Messages
1,879
It looks similar to federal fire stick pre loaded muzzle loader rounds.
 
Joined
May 4, 2010
Messages
19
It is very close to a 20 ga round.
Here is what I measured

20 GA. UNSUB

RIM DIA .754 .834
BASE .688 .700
MOUTH .668 .600
LENGTH .690 .712

The only thing I can come up with is that it is some kind of shell for a trip wire or perimeter warning device.
Otherwise, I cannot explain the primer on the inside and the charge in the head of the case.
Even with some type of nail setting tool or Ramset it does not make sense.
 

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