I scooped a pelithera of 30-40 brass a few years ago. It ran the gauntlet from brand new unfired to fireformed 303 br.
I have been known to help out a fellow who is in dire straits, but a story to retell first. Answered an ad on EE for 30-40 brass...thought I'd help get a Fellow shooting. He only wanted a certain brand though, he was building up his stock of brass.
So...if you are in bind I can shoot you a box. But if you are just building up a supply, then find an old guy like I did. Which may sound grumpy; but I know how frustrating it is to not have any (got a few oddballs I do) to even develope a suitable load. But if you are just fattening up the hoard... move along then.