I had just finished shooting my #4 rifle today and was packing up for home, when I looked down and saw 5 forlorn cases on the ground. It didn't take me long to identify them as 8 x 57 Mauser, and Boxer primed to boot! When I got home I searched the internet for the headstamp, which is "FCPO" and below that "45".......couldn't find it anywhere. I did find an "FCPQ", but that's not it.
Does anyone know where these cases were made? Corrosive primed? They look perfectly reloadable as is.