I've been preaching the same thing but for the last month my local WalMart has been having a little fun by not fixing an inventory count on federal lightning 22lr. It's always "in stock" now. I think they're keeping tabs on the app watchers.Snagged two 100 round Federal Champion 9mm packs at WalMart for $21.47 each.
The Walmart app is fairly accurate showing what ammo is in stock and where. If you don't see it in the case....ask....there probably is some in the back.