My first centerfire rifle was a Winchester 670 in 30-06. Learned a lot about reloading and shooting with that rifle but several years ago a bit of rifling let go a few inches from the muzzle and it went from .5 MOA to 3+. I retired that rifle after over 25 years of hunting and thousands of rounds of "load development". At the time I considered having Shilen re-barrel it but decided it wasn't worth the investment. I replaced it with a Super Grade M70, another 670 and a Ruger M77 in 30-06 so I don't need another 30-06.
I'm wondering if I should have that old warhorse rebored to 35 Whelen. Open to other suggestions as well, goal is to use a CB in it, of course.