Hi All
I am trying to identify this rimfire cartridge. 40cal projectile with copper shell. Length is 1.5 inches and .5 inches at its widest. Head stamp is "U". I have attached photo. Are there any good reference books to help with identifications? I just inherited a large number of shells and need all the help that I can get.
Thanks
Mark
I am trying to identify this rimfire cartridge. 40cal projectile with copper shell. Length is 1.5 inches and .5 inches at its widest. Head stamp is "U". I have attached photo. Are there any good reference books to help with identifications? I just inherited a large number of shells and need all the help that I can get.
Thanks
Mark
