454 Casull ammo is reasonably priced for the Hornady Custom rounds. They can usually be found (online, at least) for about $25 per box of 20. That's not a lot of dough for such a powerful pistol round. A lot of recoil of course; I shoot 'em out of a five-pound Raging Judge Magnum and they have substantial recoil. I would guess that the kick will be a lot more to wrestle from the short-barreled Alaskan, as it is a pound and a half lighter.