HumblePie
Lifer
Theres been rumors of legislation on ammo as well as all the other gun ban crap. Everything from stopping online sales, to limiting how much you can buy, to well who else knows what they will think of. So thats part of why theres a run on it. Plus once a few people start panic buying it just spreads as the person who wasnt panic buying starts seeing 9/40/45 disappearing so they buy it since its low on stock....and well you get the idea
On NPR they were discussing some of those possible bans including limits on ammo sales per person because of how much of an "arsenal" the Aurora shooter had amassed with his 6000 rounds. And the lady interviewing the current leader of the NRA asked, "Wouldn't that have helped stopped him if he couldn't get so much ammo?" as well as things like 30 round mags and what not. She was talking about how part of what legislation they are going to impose would be a proper license to pretty much buy anything firearm related.
So with news like that, it explains the current buying frenzy pretty well.