I have a large ring 7x57 German produced Mauser, still wearing the military configuration, that has been tapped and the bolt turned down professionally that I can't seem to trade for something that I will use. The stock would refinish nicely after being steamed, cut, and shaped. With all of that said, if the barrel comes off to be shortened, it`s getting replaced. Has anyone had a Shaw barrel put on a Mauser? A 35 Whelen seems like a good woods cartridge, but the internal magazine area might need some work for proper feeding. Have any of you guys been down the road of stepping up calibers in a large ring military Mauser?