Originally Posted by jmcb210
Let's rephase the question. If I were to hand reload and the .270 regular barrel savage and the .308 heavy barrel savage were my only two options, which one would you choose for a 800 yard shot.
Either one is capable, and since you're talking about hunting, the profile of the barrel becomes less significant as you're looking to make first round accurate hits and not as concerned with the barrel heating up due to taking numerous shots at the range.
The .270 is going to have better ballistics, drop less, and drift less due to the wind when comparing similar bullet weights. Look up Jack O'Connor for all you need to know about the .270. He makes the argument that a 130 grain bullet from a .270 is one of the best combos for deer and you can use heavier bullets for bear.
.308 is plenty accurate, I just don't think it's the finger of God that some portray it to be.
Both will have plenty of factory loads available, but if you're going to get into handloading, there are a lot of better choices for deer for those ranges than .270 or .308.