So far as I can tell, unless you have something chambered in a relatively obscure black-powder metallic cartridge caliber, there is no brass to be found on the open market.
I have a brand-new .300 Win Mag coming that I’d really like to, you know, shoot eventually, and the current panic has made brass for it unobtanium – even more rare than .22 rimfire ammo.
This sh!t has got to cease.
UPDATE: Found some – Norma, in stock at Grafs. For about the price of gold per ounce. (*sigh*)
I think I’ll wait….
UPDATE: Seems I can get Winchester brass already loaded for less than Norma brass empty, so I bought a case of 180 grain Super-X for $25.99/box. That should do.