I use these zipper bank bags:
https://www.ebay.com/itm/Beige-Vinyl-Zipper-Bank-Bag-Lot-of-5-5-5-X-10-5/303683482217
I can put hundreds of reloads or brass in these. I throw in a piece of paper with my load data and a silica pack in each bag. Saves me a lot of space.