Rebarrel it and have it chambered for the same cartridge. Nothing at all wrong with the .30-06. I bought my first rifle chambered for the .30-06 a couple of years ago (a pre-'64 model 70) and absolutely love this cartridge. Before that, I'd been hunting and shooting with mostly magnums since the late 70's. I now tend to think magnums are overrated, though I still own a couple.