Civil War era bullet or something else?

[ChicagoCanMagnet]

Hello,

I'm new to MD and went out to a permission in a rural part of northern IL. I found what I think is a 3 -ringer civil war era bullet, but all the examples of them I've seen online don't have the vertical bands that go down the sides over the 3-rings. It also didn't have any manufacturing mark on the inside.




Anyone have an idea on what type this is or how old it might be?

Thanks

 

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[Charlie P. (NY)]

The vertical bands are from the rifling grooves that were cut when it was fired.