I think the price is a little high.
Before Christmas, the Walmart in Opelika, Al had a Vanguard with tan/black spiderweb synthetic stock on clearance for $350.00. You could also get a 3-9x Leupold Rifleman scope for $199.
The .300wby won't be too bad in the Vanguard. Yes, it'll recoil, but then so does the Rem.870 pump with 1.5oz-2.0oz. turkey loads.
If you reload, you can down-load the .300 to .308 level loads for about the same cost as .308.
I've got a Vanguard in .257wby mag and I enjoy shooting it. Also, a Savage M110 in .300RUM.
FWIW, though, I do prefer to hunt with lighter firearms.