Found metal detecting, a bullet casing that I think might be old, but I know little about ammunition in general.
Any hints would be appreciated, thanks.
I suppose this was better posted in What Is It?, I just noticed :/
How old was the site it was found on? How deep? What else did you find on the site?
It is a 44-40 WCF case. First introduced in 1873, I find them around ghost towns in my neck of the woods. It's odd that many of them don't have any caliber marking on the case heads, and that's what tipped me off to what it was.
https://www.google.com/search?q=44-...69i57j0l3.12085j1j15&sourceid=chrome&ie=UTF-8