i was watching them last night, they tried to prove that if you were under water and you were shot at would you get hit?
they proved that if you were 0.5M under the water you would be safe, even for the 50 cal cannon.
the most ineresting fact is the 9mm pistol bullet traveled the furthest. the 50cal bullet disintegrated in 0.3M of water from the impact.
all tests were done from 1.5M high and 30deg pointing down.
if the 9mm was the best what about our 4.5mm????????? :dunno