🔎 UNIDENTIFIED Bullet (?) but what kind and how old?

[Detector mom]

I’ve found a lot of bullets and rifle cartridges around here but none like this.

 

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[ironhorse]

Probably not a bullet casing...the thin brass with a channel in the side makes me think of a vintage lipstick tube or at least a piece of one

Keep looking for the good stuff

 

[Indian Steve]

Is it lead? Looks like a concrete anchor.

 

[pistol-pete]

No way a shell casing.