One of my projects down the road is to rebarrel a small ring 1895 mauser to 257 Roberts. I have recently come across a large ring mauser barrel in 257 Roberts for sale. My question is could I turn down the shank to .980 and thread it to fit my 1895 action. This would save me a lot of work. Large and small ring mauser actions have the same 12 tpi. Only difference is the shank size. 1.1" for large ring and .980" for a small ring.