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Lv 6
? asked in SportsOutdoor RecreationHunting · 10 years ago

Dummy .50 BMG headstamp info?

I have a Dummy .50 BMG round. Three holes drilled in case. Head stamp reads "F A 4". I know FA means Frankford Arsenal but does anyone know what the 4 means? links would be great too.

Update:

Whoa, no kidding? I didn't think it was that old. It's in real good shape for 1944. I couldn't find a link or any info. Just wow I own a WWII era .50 BMG dummy round. Thanks mike.

Update 2:

Mike- My round appears to be brass [maybe brass coated] is that normal or what?

Update 3:

Nope, I was wrong. My case is magnetic so it might be steel with cadmium coating. Mine is in great shape with very very minor pitting.

I also read during WWII only the Frankford Arsenal and Winchester made .50 BMG. Which explains the single digit year code on my cartridge. I had read FA always used two digit year codes. Since it was war years and they were one of two makers of .50 BMG and the only GOGO [Government Owned, Government Operated] maker that really explains the single digit year code.

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