Old Copper Rifle Case

[BRI]

Cool find of the day. While hiking through the woods today, I came across this cool old copper rifle case. The google machine said they quit using copper in 1888? I took a pic of the bottom of the case and there appears to be a U and maybe a C at the end. Google suggests Union Metallic Cartridge Company. I have no idea but pretty neat find. Anyone have any insights on possibilities?

 

[Bullshot]

11 mm / .43 mauser?

U M C?

 

[BRI]

11 mm / .43 mauser?

U M C?View attachment 291301

That looks nearly identical. I can barely make out the M but can't see the USA on the bottom.

 

[ismith]

43 Nosler or 11.5 Creed.

 

[Bullshot]

43 Nosler or 11.5 Creed.

Nah it was clearly a 43 BisonHammer