"And if it were steel why would they bother painting the cartridge blue" Do distinguished them from other rounds. When I was in the Norwegian military we had a

"And if it were steel why would they bother painting the cartridge blue" Do distinguished them from other rounds. When I was in the Norwegian military we had at list bullets painted: Red: Blanks. Blu: Plastic bullets for training. Cheap and less pollution then lead. Yellow: Tracer rounds.