ORIGINAL: 8mm/06

The 350 Remington outclasses the 35 Whelen but only a little. So I'd go with the 35 whelen only b/c it is based on the 30/06 case and ammo will be easier to find loaded, and cheaper to load. I would suggest that even thought you don't currently reload you look into it. It is not that big an investment, and although it's not a HUGE savings, it is a savings. And you have the satisfaction of cooking your own home-brewed loads.