Midway has a 35 Whelen blank for a LR Mauser. Thinking about having shank turned down and threaded for a SR Mauser. Then having a couple threads removed. And finally rechamber to a 35X57 with a 35 Whelan finish reamer.
https://www.midwayusa.com/product/54...y-in-the-white
Talking it over with my "smith".