Thanks for the post. I visited two different Wal-Marts in Raleigh, NC recently, and neither had 500-round bricks of .22.
I went to the gun show in Raleigh this weekend, and we waited in line to get in on Sunday afternoon (!). There were tons of people there, and the ammo dealers were swamped. And, yes I spent some of my disposable cash on increasing my cache of milsurp ammo.
None of the five I visited had any either. That was second on my list to get.
I went to a gun show in Little Rock last weekend. Wall to wall people. Supplier had a lot of ammo on opening morning, but he couldn't take everyone's money fast enough.