Any idea what this brass was fired in?

[CLT65]

My son has been sorting and processing some 9mm brass, and there's a bunch of these in the batch. The case head is rounded and battered. The firing pin dent is huge, compared to normal. It makes me wonder what kind of gun it was fired in that would do this to the brass. Any ideas?

Read More

 

[po18guy]

What do the case walls look like? They appear to have been tumbled in something rather coarse. As to the primers, I would guess an open-bolt gun like an Ingram/MAC10 or some other slam-fire with a dimple firing pin.

 

[Will_White]

My son has been sorting and processing some 9mm brass, and there's a bunch of these in the batch. The case head is rounded and battered. The firing pin dent is huge, compared to normal. It makes me wonder what kind of gun it was fired in that would do this to the brass. Any ideas?

View attachment 1187091

FGC 9

 

[po18guy]

There is a combination of US and various foreign commercial and military brass. With its crappy shape, I would crush it and toss it into a scrap can.

 

[CLT65]

Case walls are fine, no tumbling involved. The headstamps are just beat to heck and rounded. They're definitely scrap, no doubt on that.

 

[Dozer99]

1st or 2nd generation Uzi 9mm. Open bolt's where hard on primers.

 

[DLS]

Agree ... open bolt SMG is most likely what fired those cases.

 

[Certaindeaf]

Obviously a Destroyer.







Lol

 

[HighlandLofts]

A GUN.

 

[po18guy]

If the case walls are fine, this is even more curious. Impressions in he brass appear to be from at least two different guns. A few have a circular impressions haflway between the primer pocket and rim edge and a few have oddly shaped "bolt face" impressions. However, the headstamps and rims seem to be worn from repetitive contact with "something", as if the case heads were subjected to some type of abrasive process. IOW, very strange.