I just purchased (literally just a few minutes ago) 500 pcs of 32-20 brass for a total cost of $160.50 from:
https://firearms-texas.com/product/s...-star3220eup1/
I have never dealt with them before but they do take credit cards. I used a card I rarely ever use to protect myself just in case they turn out to be a scam. I know how hard they have been to get so letting you folks know first. I will update once I receive the brass or have further info.
Ron