While working the Atterbury range yesterday I saw a rare but dangerous occurrence. A young man had a .22 lever action he was sighting in. He pulled the trigger on a chambered round and nothing happened. He ejected the round and the cartridge exploded as he ejected it. No one was hurt and he continued shooting. I have seen a lot of hang fires but never one with this much delay. The book says keep it pointed downrange 30 seconds to make sure the misfire isn't a hang fire.