I live in a straight-wall cartridge state (OH), and I enjoy my AR's. I've been looking at .450 Bushmaster uppers, but couldn't get excited: $2 a round ammo, finicky and expensive magazines, enlarging ejection ports, special bolts, etc. The death knell is our limited 9-day gun season, and the limited usefulness. I'm genuinely excited about the .350 Legend. For me, most hunting areas have houses within 1/4 a mile. I like a bullet that's dropping fast after 200-250 yards. I like that the round can be used for coyotes, hogs, and deer. In short, it can be used year round, for crop damage permits, or regular hunting. I like that the prices are 1/2 the 450 Bushmaster, and the recoil tame. I like the prospect of a straight-forward barrel swap. I just hope to see some lightweight uppers to keep the weight down.