Lake City 59 ammo.

[TDH]

Yes sir Jim one single offset hole. I have twenty of them right here and I had never seen them before either. I bought that can of loose of LC at a gun show about ten years ago and I have shot some of it before and all standard boxer primed.
USGI that looks just like it but the head stamp is 59. Thanks guys appreciate the info.

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[browningautorifle]

one single offset hole

Very interesting. Wonder if they're made wrong...?

[fjruple]

Jim--

I seem to remember Boxer primed flash holes being slightly off set in some production ammunition. I also seem to remember a study being done to determine to ascertain if the off-set flash hole had a detrimental effect to the performance of ammunition and the study was inconclusive that there was no real different perfectly centered flash holes and cases with slightly off-center flash holes. The only way to really see if the cases are Berdan primed is to remove the primer and see if the primer anvil is built into the rear of the case. some time you can look into the opening of the case and see were the primer anvil has been punched into the case. Slightly off-set primer flash holes are the bane of us reloaders as they can break off the de-priming pins.

Cheers

--fjruple