In my nearest city, the Academy store gets ammo 3 times each week. The line begins at 07:45 at the front door. They open at 09:00. The first 15 in line will get ammo, after that it is a maybe.
No 20 will not get any. The limit is 3 boxes. This morning they had 100 round boxes of .223 and 50 round boxes of .45acp. Did not buy any 9mm but they had some. Prices are .35-.40 cents per round . They are sold out in 20 minutes.