In the late 80's I worked for an ammunition remanufacturer that loaded all the practice .38 SPL rounds for the Los Angeles PD. We were located in central CA and loaded 700,000 rounds a month for them. These were "lead free" loads as they were loaded with a plated bullet, and we used Fiocchi lead free primers and W231 powder. We packaged them in 30 rd bags and brought back the fired cases in the smaller galvanized trash cans. Towards the end of my time there LAPD was transitioning to the Beretta 9mm so we started loading them the same "lead free" round in 9mm.
Best part of that job was getting to shoot up all the "blems" for free. I was shooting 600-800 rounds a week in my revolver and ended up buying a newfangled (back then) Glock 17 just so I could start shooting up the 9mm.