Rocky mtn Bill,
If you just have to have it rebored, I agree with Joe that the best caliber would be 9.5x57. The Whelen would be OK,but you would likely have to open up the mag.box. I had trouble getting one of my 9x57s to shoot and tracked down the problem to a crack in the stock through the recoil shoulder and from behind the mag.to the trigger.These cracks weren't too obvious, but opened in recoil. I epoxied a cross bolt across each crack and it settled down. Large calibers aren't all that sensitive to throat erosion. Just a hint, switch to 3 round groups and they will look better.It won't cost anything to check the stock before deciding what to do.
Mike
