Re: Need knowledgeable advice
I'd probably get the 300 Win Mag, because I believe it will be a little more effective on elk and grizzly bear. The larger bullet diameters seem to deliver more knockdown effect on the game. I don't own any Remington rifles.
I own two Tikka T3 Lite rifles in 7mm Rem Mag. I put three 168 gr Berger VLDs into 3.6" at 988 yds last weekend. I'm awfully impressed for an off-the-shelf factory rifle. They both shoot 160 gr Nosler Accubonds to about 0.6 moa accuracy, but the one really likes the Bergers. The Tikka T3s are pretty light, have a very smooth action, and the trigger pull is about as good as you'll find in any factory rifle. Plus the price is hard to beat.
If you're thinking of having custom work done on the rifle after your purchase then you might want to go with the Remington 700, as they are a favorite of many custom gunsmiths. But if you plan to shoot it stock from the factory, all I hear is good reports about the accuracy of the Tikka rifles. Mine are both deadly accurate with high quality handloads.