Although I love a fast 270 win I personally think the .308 class of calibers are the most universal and all around versitial calibers for most big game hunting in North America that is. Other than that I think it's more of a personal choice. Mainly a good medium grade of hunting rifle would do you fine in both accuracy and durability. I don't recommend the cheapest thing on the shelf. Buy what fits you comfortability, in the store put it up to your shoulder a bunch of times and see how it feels.