for the shots that about of 75% of people take, a 308 or 30.06 is just fine. Don't sweat it. Either will do the job. Personally, i have the 30.06 but would like a 308 as well but just can't justify it. Overall the 30.06 is probably better.. this is my opinion. The fact is you can get ammo at 150 gr, 165, 180, 220 which makes this a true work horse gun. Its great for whitetail but could be used on anything in the lower 48 with the right bullet. With the 308, you are limited a little more but it doesn't make it bad for hunting. I just know that if i go elk hunting, i will take my 06 with a good 180 gr bullet.. harder to do with the 308 but then again you could go with a 165gr.