I'll have one ASAP, probably a ways down the road, but one can always dream...
My reasoning? Quite simply because I can, and for some reason, it's comforting to know that if dinosaurs ever return, I'd have something to fend the off with. LOL

It would make a great long range round for anything you cared to hunt with it, and although it is probably too much for anything I'd ever hunt here in the U.S. except for the big bears, I ususally prescribe to the "Dead is dead" theory, where there's no such thing as overkill. And as Andy stated, I'd have to try it out on deer.
gd