(quoted from post at 17:00:22 04/23/14) Remember the Sandy Hook shootings out east? Involved as reported, a .223 Bushmaster and some sort of 9mm pistol. Imediately, at least the .223 Bushmaster was widely reported to be an "assult" rifle, whatever that is, with immediate calls for a ban on at least .223 Bushmasters, and .223 (5.56mm) ammo. If you remember, as a matter of very public record, there was even a Congressional Bill launched by a California senator that named 300+ guns and certain "assult" ammo that needed to be outlawed, but the bill fell short in votes and died without ever making it to the House for Joint Resolution status. One of the "assult" ammos was .223 that is a common ammo beyond what are termed "assult" rifles. So...at the time, everyone began buying up .223 and the more potent 5.56, driving the prices of 50GR .223 to double and triple, per round, emptying the shelves nationwide. Because it became so expensive and unavailable, there was and maybe still is a desire for .22LR in "AR" style rifles (AR-15 versus AR-22), because when it comes to plinking (practicing), .22LR still is much cheaper. .22LR used to be .04/.05 cents per round a couple of years ago, lead and full metal jacket hollow point. Now, when you can get it, its about .09/.10 cents per round, lead, and .10/.12 cents per round hollow point full metal jacket.
That is what happened, a matter of very public record.
Mark