I recently picked up a neat little single shot bolt rifle by BSW. The caliber marking is "5.6 x 35 RWS". I'm thinking this is probably the .22 Vierling cartridge, but that cartridge is usually denoted 5.6 x 35R. I'm not sure what the metric designation for the .22 Hornet is. The rifle has BUG proofs and is marked "Fluss-Stahl Krup-Essen" on the top of the barrel. The top of the receiver is marked "HD Carabiner BSW Suhl" and the buttplate is also marked BSW.

I'm just starting to clean up and go through the gun, would love to hear from anyone with knowledge about these rifles. Thanks