Im still very undecided on what caliber for a new rifle so im just trying to pick everyones brain to learn more on all of them im considering and unfamiliar with. Are these calibers good for woodchucks to moose out to 600yds? i know the 6.5x284 is suppose to be a great long range cal, but what about mid range 300-600? Anyone know the specs on the 280AI out to 600yds? I dont know anything about the 280AI, but im looking into the kimbers and im liking the looks of them!!! I know that the availability of factory 6.5 ammo is very slim but, how about for the 280AI? Thanks!