The .308 is plenty powerful enough for any deer sized game. Considering ammunition availability I consider it a very good choice. There is also a TON of great reloading information available for it. The point is that any man who becomes familiar with his .308, and what the bullet does once it leaves the barrel, can become a pretty darn good shooter out to the 400 yard mark. I have only been hunting about 20 years, but if you can't get within 400 yards of your game you need to concentrate more on your hunting skills than your shooting skills. I personally hunt with a 30-06, but that is just a hair faster than the .308 with the same bullet. I really don't know if I would notice the difference between the two rounds if I were to switch today.
ORIGINAL: A11en
If you're moving out West, I would recommend somthing that shoot a little flatter than the .308.