What type of bullet is this, is it worth anything?

[DRambo]

Found at the bottom edge of a sand bar in the Chattahoochee River.

 

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[seekerGH]

pinfire bullet, very interesting find. No idea on value

https://en.wikipedia.org/wiki/Pinfire_cartridge

 

[DRambo]

Great pics thank you for information.

 

[AaronN322]

This is a 7mm pinfire cartridge. Can you get a better view of the headstamp or by any chance still see what it is? That would help me date it for you.

 

[nsdq]

That is freaking cool , some troops did carry pistols that fired those but due to lack of supply support issues it as limited use, and some cases where reused with a mod'd percussion cap on the nipple /pin to make reloads more info mid way down on this link Sgt Riker's Civil War Trading Post - Cartidges....ps looks to be 7.5 mm cartridge [FONT=&quot]
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[Real de Tayopa Tropical Tramp]

You menhave it well pinned down, yes, it is a pinfire cartridge.