They are very similar to one another. With that said, 308 is more widely available. Plus, you can buy the 308 in bulk lots. My local wal-mart has federal 308 150 grain soft points for $13.00 a box. Now, that's a good deal on some hunting ammo. I have been stocking up on it every time I go in there.

I like to be able to find cheap available ammo. I'm still stunned more hunters don't use the 308, because it's so versatile. Depending on the load you can hunt elk, bear, hogs, deer, varmints etc.. It truly is a great round.