Man, it really depends on what you want to hunt. 30.06 will give you a very wide variety of ammo to choose from and pretty much every manufacturer of firearms chambers for that caliber. It is kind of like the Chevy of gun calibers, you really cannot go wrong with it. 7mm on the other hand is kind of like a hyper velocity round that IMHO people carry to feel manly or something because they can handle the recoil. If it where me, I think that I would choose the .06 over the 7mm, there isnt anything in North America that the .06 cant handle with a well placed shot.