Wal Mart still has plenty of ammo. Don't know for how long...went there today and got 100rds .223, 100 rds 45acp, and 550 rds of 22lr. Guy ahead of me bought 4-100rd bulk boxes of 45acp. Still plenty on the shelves.
Just got back from my Walmart. They were almost completely out of 45acp ammo! They didn't have any 45acp BB left and only had about 6 WWB 100 packs left. I bought 2 WWB packs with my Galco gun belt money. I think they'll get more, but I wouldn't have felt right if I didn't leave with some of it.
I must have been lucky on my items then. Ordered 3 lowers, and 2 uppers along with parts for them (leaving the third alone for now) and got everything in without the price hikes or waits...