Heavily crimped 7'62 Mosin

Another sample from the spanish civil war.

Looks like an ordinary ball cartridge, but the bullet is double-crimped and the primer is ringed in. CWS case and bullet. Red primer annulus.

Is this a ShKas round lacking the appropriate letter on the headstamp?

Yes, it’s my understanding that early ShKAS cartridges by Tula lacked the Cyrillic letter SH in their headstamp. The cartridge is probably a bit shorter than standard for the caliber if it is, as it appears to be, a ball loading. JG

Schneider, correct, it is an early ShKAS. Nice find!