Upcoming large military auctions of scrap metal includes event 7076 - for Demil BQ National Scrap Metals - numerous lots consisting of brass, aluminum and steel.
Example lots include:
18,000 lbs of fire brass 12,000 lbs of fire aluminum shell casings 1,000 lbs of magnesium run flats 50,000 lbs of fire steel shells 50,000 lbs of fired aluminum 40mm casings