RE: What is your favorite caliber?
I have two favorites 270win and 300 win mag. Ifyou were to upgrade from a 270win to a larger caliber I'd chose the 300win mag. I would chose a quality firearm that has some weight to the rifle and you won't notice that much difference. Calibers are personal choices what rifles can do has been proven a long time ago. Always nice to learn a new rifle.