Re: 300 weatherby vs 300 remington ultra mag
Personally, I don't like Weatherby rifles much, never will own one. I don't mind a belted case if pressures are kept down, but always prefer a nonbelted, the Ultra for example would get my vote.
I talked to John Hoover today, he said he was getting 3500 fps out of his 32" barreled 300 Ultra with a 210 JLK with brass lasting 3-4 firings. He said it does a number on the deer meat though.
Freebore might be a source of inaccuracy but, I think it may have more to do with people bumping the shoulder back too far on the belted cases that leads to problems with alignment to the bore.
I think you're better off with a Winchester or Remington in the long run, Armalite make a damn nice rifle too. Aftermarket goodies for a Ruger are still better than a Weatherby and they make a good rifle, just not as much out there for them like there is for the remchesters...