I already own a nice semi custom 280AI, but have been looking at the differences. Having never hunted with either, I generally only hunt mule deer and maybe some day will draw an antelope tag. I have seen what the best of the west boys have done with the 6.5X284. I really like that savage SS long range hunter in the 6.5X284. Its crazy that a 100 rounds of laupa 6.5X284 brass is cheaper then a 100 rounds of nosler 280AI brass. Now if I had won the mega million I would just buy 10 of each caliber I like. So what are the pro's and con's to each????