What is it?
Some might call it a wildcat & name it an 8mm-06.
Worst part is, that’s an unusual headstamp and the original cartridge would have made a nice collectable for someone (like me or Rene).
The case is for the M1 ball, naturally. I think I’ve gt a couple of boxes and carded tan bandoliers of the same HS. Cheers, Bruce.
Hey Bruce. Check them. If they are that headstamp, let me know. I thought that headstamp was used to identify different case manufacture procedures and not used for standard issue Ball M1. The lack of a primer crimp implies that particular case was initially made as an unprimed empty.