There is 7.62x39 and 12 gauge 2-3/4 7.5 shot pretty available if you are actively looking. There has been some 50 rnd boxes of 22lr, and a couple weeks ago, Academy had probably 2 dozen cases of 200 .223. Prices are bad, but not Insane. I dont want to pay $0.50/rnd for 7.62, for $7/50 for 22, but if you look its out there. Friend said he saw a crap ton of Creedmore the other day at Bass Pro, for like $37/20, but I think it was Hornady Superformance, so thats expensive any time.
I saw a bunch of steel .380acp ball ammo a few weeks ago.
So, talking to a guy at gun counter, he mentioned, its not just scalpers, people are buying random stuff, in hopes they can trade it for what they need. Which probably is gonna leave people stuck with cases of stuff they can't shoot, and is basically off the market.