I want to purchase a new hunting rifle in either 270, 308, or 30.06. I'd like to have a light quick handling rifle which is also easy to lug in and out of deer stands. My question is whether I should get a 20" barrel or opt for the longer 24" or 26" barrels. How much difference is there in accuracy and muzzle velocity between these barrel lengths? Accuracy is very important, but a short barrel makes life a lot easier.