Lancaster, I recently aqquired a Ernst Steigleder mauser chambered in 10.75x68. Researching the rifle with Axel's help it was determined that it was built using an early (1905) oberndorf 98 sporting action & chambered in 10.75x63. The rifle had been restocked in english style & also had Birmingham proofs from 1966 as a 10.75x63, but after chamber casting confirming it had been rechambered to a 10.75x68 sometime after the Birmingham proofing. Nice rifle & shoots great!

m4220