I've been using gunbot a lot. It doesn't cover all of the stores, but it beats checking 20 or more several times a day.
I get email from stores on new stocks as well, and have bought a lot of ammo. You have to buy smart, though, and luck out to get enough on an order to make shipping worthwhile. I've found that the shipping for one brick of .22LR can also pay for 3 bricks and 10 or more boxes of centerfire ammo in the same order... $16-$17 shipping... mainly at Midway USA.
I still haven't tried going to a Walmart because the limit and the cost of gas really runs up the cost for just a few boxes... that could be gone by the time I get there, too.
Wynn
USAF Retired '88, NRA Life Member. Wife USAF Retired '96
Avatar: Wynn re-enlists his wife Desiree, circa 1988 Loring AFB, ME. 42nd BMW, Heavy (SAC) B-52G's
Frédéric Bastiat’s essay, The Law: http://mises.org/books/thelaw.pdf
Thomas Jefferson said
“A government big enough to give you everything you want, is strong enough to take everything you have.”
and
"Peace is that brief glorious moment in history when everybody stands around reloading".