So in the shooting range they tell you that you ar...

So in the shooting range they tell you that you are entitled to pick up your own brass and take it back with you BUT they don't allow you to shoot any other type of cartridge other than brass because then it slows down their sorting process so they can make their own crappy ammo. So if i can pick up all my spent casings, why can't i use steel and just pick them up when i'm done?