I got a few rounds of this. It does not have any head stamp. 30 Luger or 8mm Nambu or what? That's a 45 from WW2 on the right.

Probably 8mm Nambu, the Japanese often didn't put headstamps on their cartridges. Do you have a 30cal. projectile to compare it against? That should show the larger 8mm diameter. I'm sure other more knowledgeable people will come along with a more definitive answer.I got a few rounds of this. It does not have any head stamp. 30 Luger or 8mm Nambu or what? That's a 45 from WW2 on the right. View attachment 3324863
A quick check against a 9MM cartridge or empty case will show that the Nambu case is both longer and has a slightly larger head (and body) diameter.I got a few rounds of this. It does not have any head stamp. 30 Luger or 8mm Nambu or what? That's a 45 from WW2 on the right. View attachment 3324863
Thanks that was very informative.Here is 7.65mm Luger and also 8mm Nambu
View attachment 3325407
Side by side - nambu - luger - nambu - luger View attachment 3325409
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Sectioned Nambu - I was told that the brass colored was pre-1942 and the steel color post 42
View attachment 3325411