AK-47 Shooting Underwater and Filmed at 27,450 Frames per Second
See this fascinating TheSlowMoGuys video in which Destin shoots underwater with an AK-47 to explain about the Physics of cavitation. Destin is explaining clearly how the shot pressure is being modified because of the water around.
Two high speed cameras were used in this video. They shot at 27,450 frames per second!