“Terminal velocity of a bullet is dangerous.”
Terminal velocity, if the bullet is fired at a high angle, is not very dangerous.
But a lot of idiots in celebratory gun fire, fire the rounds at less than 45 degrees from the horizontal, and the horizontal velocity remaining makes them quite dangerous.
Terminal velocity of a bullet free falling is usually less than 400 fps.
Actually up to 80 degrees can be dangerous. If the bullet tips and keeps it’s rotation, it can come back down very fast. Only when it falls back on its base and tumbles does it slow down to nondangerous speeds.