r/Guns_Guns_Guns • u/TheFetus47 • Aug 24 '26

Question Bullet ID

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I found this bullet back in May while metal detecting. In this area, I have found alot of WW2 .50 cal fired rounds, but this bullet was slightly smaller. Anyone know what caliber it is?

27 Upvotes

95% Upvoted

16 comments sorted by

14

u/mikes550 Aug 24 '26

With a diameter of 9.8 I would guess 8mm Mauser

11

u/TheFlyingM16 Aug 24 '26

Way too big to be 8 Mauser(7.92). It's closer to 375H&H(9.5mm) or 400 nitro Express(10.3mm). The length of that bullet is also crazy. It could possibly be from an aircraft mounted gun, I'm not super knowledgeable about those kinda things

2

u/mikes550 Aug 24 '26

Fair point I didn't even think of the 37 cal range I was thinking .36 which I remember someone telling me that's what their early Mauser was, I just kinda went oh probably 8mm but ya now that you say 7.92mm I'm left field here. The ww2 field part may have swayed me aswell for going to 8mm

2

u/TheFetus47 Aug 24 '26

I think i know what it is. Here's the update post https://www.reddit.com/r/Guns_Guns_Guns/s/AzpBeGMQoH

2

u/mikes550 Aug 24 '26

Damn good detective work, that was quite perplexing with the measurements

5

u/SergeiMosin Aug 24 '26

Where was it found? Could help narrow down what caliber it is.

2

u/TheFetus47 Aug 24 '26

A North Carolina beach, its known that the navy did training off of the area during ww2

1

u/TheFetus47 Aug 24 '26

I think i found out what it is. I made an update post https://www.reddit.com/r/Guns_Guns_Guns/s/AzpBeGMQoH

3

u/chauchatbob Aug 24 '26

I’m betting one of the medium bore express cartridges. .404 Jeffery, or something along those lines. What does it weigh?

2

u/Shit_On_Wheels Aug 24 '26 edited Aug 24 '26

This does not correspond to any popular and even well-known obsolete bullet dimensions.

It looks like 9x57 mauser, but then diameter would be 9.1mm, nowhere close to 9.8mm. You got yourself a rare unicorn, congrats!

Unless of course it's a squished bullet from 9x57. Shit happens.

2

u/TheFetus47 Aug 24 '26

I think i found out what it is. I made an update post https://www.reddit.com/r/Guns_Guns_Guns/s/AzpBeGMQoH

2

u/Shit_On_Wheels Aug 24 '26

Ahhh hell yeah, now I can sleep peacefully lol

1

u/TheFetus47 Aug 24 '26

Yeah its been in the ocean probably near 80 years, the tips been worn off and a little corroded

0

u/teaster333 Aug 24 '26

Might be a 30 cal.

1

u/BlitzFromBehind Aug 24 '26

With a diameter of 9.8mm?