You guys need to watch Craigslist.
The last batch I bought:
357 rem maximum brass, unprimed in factory boxes, 400 rds total, have 60 factory loads too. $75.00
His count was a little sloppy, but I didn't complain. Two 50 rd boxes were Federal nickle. Almost all of it was never fired.
Cudatruck can verify: it was old stuff. The 20 round brass boxes had sale prices on them for $3.49