These videos show just what kind of force is involved when various types of ammunition are fired into ballistic gelatin. None of the videos have an audio track.
First up is 5.56x45mm M855 fired from a AR-15 with 16.0″ barrel and 1/9″ twist:
7.62x51mm M198 DUPLEX (According the testers, this round was “developed from Project SALVO in the 1950s, cartridge fires two 84-grain bullets per cartridge”):
40S&W Federal 165gr Tactical HST fired from a Glock 22:
22 Magnum Hornady 45gr FTX Critical Defense fired from NAA Mini-Revolver with 1 1/8″ barrel length:
photo: Screen shot from BrassFetcher via youtube.com