<prompt> Compressed air is used to fire lead slugs in :Automatic pistolRevolverAir rifleShot gun  <response>: C i.e. Air rifle Air rifle air pistol release shots or pellets skied which are propelled by compressed air gasQ. Some weapons use caridges of liquid CO, as the propellant. Their effective killing range for rats, squarrels is 30 yards Parikh 40 meter Reddy - total range. 