Haha, that alone should tell you, next time buy it up! Some indoor ranges don't allow the steelcase stuff for what ever reason though.
Bc most of the time they have to pick it up. If you use brass it works for them either way. You pick it up to reuse or seal. Then they don't have to pick it up. Or you leave it. Now they have the brass to reload or resale. Brass is a win win for them.