<prompt> The muzzle velocity of given firearm is : -150 ms300 ms360 ms1500 ms.  <response>: The revolver, which tends to have a low muzzle velocity of 150 ms, is a short barreled weapon with its ammunition held in a metal drum, which rotates each time the trigger is released.The muzzle velocity of pistols varies between 300 and 360 ms.The rifle is a long-barreled shoulder weapon capable of firing bullets with velocities up to 1500 ms.Reference Clinical Forensic Medicine by Margaret M. Stark - 144 