Conspiracy theory of the day:
I think this all could be working out as designed. Obama knows he does not have to pass any NEW laws to have gun control. Obamacare will work fine for that. However, he also knows that people assume he wants to ban most, if not all guns. If he combines that fear with openly talking about how he wants to do just that, then he can create a buying frenzy so fierce that the majority of all gun dealers sell out of nearly anything desirable and profitable and their ability to make money disappears. These dealers are not going to be able to hold out indefinitely, waiting for new guns and ammo to come in. If it goes on long enough, many dealers will go out of business.
Now, when you combine an ammo buying frenzy among the civilian population with the US gov't coincidentally ordering massive amounts of ammo, you have the prospect of an unending ammo shortage, so dealers can't even count on ammo sales, not to mention this will severely limit the civilians ability to purchase large amounts of ammo, or any amount of ammo as the case seems to be.
I too have never seen things get to the point that .22 is impossible to find and it is really irritating me, considering I have purchased or otherwise acquired four .22 handguns recently. I really want to go shooting but then, a guy has to wonder, what if the supply never returns? Or at least, how long until the supply does return?
Interesting times.