Well, it will all depend on a lot of factors and whether or not a substantial amount of luck exists.
Of course there is: oftentimes there just isn’t enough ammo to go around. Does it mean you should do it?
As a fellow shooter I’m begging you not to. Buy a few boxes and then come back and buy a few more. Try not to hoard all of the ammo from the sporting goods department. Everyone needs at least some ammo. Your taking it all is just needlessly greedy.