Nobody has one pounders, but I did snatch up a stores last 8# jug yesterday along with some Benchmark. Not the cheapest, but with short supplies I'll take it whenever I can.
I know a place here that has most powders in stock. the guy is known more as a gunsmith though so I guess people don't think to go there. He was out of primers last time though...
the walmart where i get my powder has plenty of slow burning powder. the powders that work well in 223 are soldout and unavailable. i have been shooting/loading 243 rounds, until the shortage/hoarding subsides. i think if everyone dusted off the 270 or such there would be plenty of bullets and powder available.