I drive the 5 NE New England states for my work on a monthly basis. I've learned where all the LGS are along my route. I stop by all of them once a month when I am near by. Some are so rural you need a hound to find them and some are big box stores in small cities and towns.
The shelves were empty from Sandy Hook until about a month ago. In the last month I've seen ammo return with limits. Not all brands, not all calibers at once and no .22LR but the other day I could have purchased .32ACP, .380ACP, 9mm, .40S&W, .45ACP, .38Special, 9mm Mak and some popular rifle rounds. Powder has begun to show up again but like ammo, not all brands at once. In the last month I've found 2000 SPP and 2# of Bullseye (all I needed, not all I saw). Primers and .22LR are the hardest to find. Reloading dies have come back but the 9mm Luger and .45ACP dies are scarce (I don't need any dies).
My point is, the stuff is out there, unlike 2 months ago. It's slowly coming back. Prices are higher; $29.99 for 9mm ammo that used to cost $16, $39.99 .45ACP for brand name ball ammo, etc. If you want it, it will cost you but it is there if you have to have it. 3 months from now it should be a lot better as the supply catches up with the demand and the resellers lose their market.