Milespatton: You are close in your phone call conspiracy theory but not quite exact!
I think it goes more often like this - I have several friends (22 ammo shoppers!) who call various Wal-Mart employees and ascertain if and when shipments of 22 ammo are coming in.
I also disagree with the OP that CCI is cranking out 22 ammo 24/7.
I think that ammunition manufacturers and distributors are making their profits the easy way by not shipping the ammo they do produce as far as in decades past and they are concentrating on making centerfire ammo as opposed to rimfire ammo.
And certain government entities are buying outlandish amounts of centerfire - for who knows why?
Hold into the wind
VarmintGuy