Hi Ash, don't discount the .338 Federal. I have a Remington 700 originally in .243 that my father gave me as a gift 35 years ago, well it was past it's prime so had Maddco rebarrel it in .338. It is a treat to use on pigs , goats and scrub cattle. As Daryl said that .308 case is very efficient and seems to perform out of proportion to it's size. I run 200 gr Woodlieghs in mine and they have never let me down. Anyway good luck with what ever you decide i am sure it will turn out fine