SeaBass,
The Weatherby Vanguard or Howa 1500 what ever you want to call them. Ok let's look at these rifles, they are not the same, but yet they are the same, I'll to explain.
I own three Howa 1500's and one Weatherby Vanguard.
Barrel length. Weatherby Vanguard 24"
Howa 1500 22" (You can't get it in 24")
Safety: Theirs a difference in the safety catch on the right side of the trigger group which is different in each model, not much, but different if you look at both you can tell. Trigger adjustment is with two screws on the trigger group, the rear is for creep and the front is for trigger pul. Weatherby Vanguard's will not let you go past 3 lbs. in adjustment and its more like 3.5 lbs. The Howa 1500 you can take down to 2 lbs.
Accuracy: Well this is a subjective think, but two of my Howa's shoot 1 1/2" groups at 200 yards, not 100 yards as most shooter shoot and I do the reloading. I get the same thing with my Savage 308, so go figure, but I have a Remington 700 7-08 that can do the same thing. I haven't shot my new Weatherby Vanguard 30-06 yet, but I'm taking it Elk hunting this fall.
When you get right down to the ground with this thing, its your money and your choice, I feel you will be happy with either one or go buy a Remington 700 or go buy a Tikka T-3 or a Tikka Whitehunter, they are all good rifles, it usually comes down to the man behind the rifle anyway. If you just had to choose just one caliber and one only I would go with the 30-06. and you don't have to punish yourself with this round. IMO
dbuck