Does anyone know what this is? I'm 99% sure it's from World War 2. I found it at sandbridge beach Virginia (in VA beach).
P.S. It's made of copper if you didn't already figure it out. (Not sure why my pics are sideways.)
Copper bullet jacket, put a pair of calipers on it and that can help narrow it down, but from the looks of it .30 caliber which covers a wide range of rounds.