20mm ID please.

[Burney Davis]

Can someone please confirm if this is a US 20mm M103 case? It measures 20 x 102 x 29.5mm. No marking on the case. What date would it be from?

Thanks in advance.

 

[ron3350]

It certainly looks like a 20x102. The dates on brass cases are usually printed on the case side and can be from 1960's-2000+. Possibly worn/polished off?

 

[HAZORD]

Looks like U.S. 20mm Vulcan electric primed case. 1960's to present.

 

[URG86-collector]

A "Yes Sir" from me, too, to that caliber. The base and primer of my cartridges look exactly the same.
However, my cases are german made according to the inscription and stamping.



Hope this helps anyway.

Best regards from Germany,
urg86collector