Originally Posted by osirus82:
Id like to see a test showing ballistic gel underwater 2ft or so and see if there is any penetration.
Ask and ye shall receive.
In this video, uncalibrated SIMTEST blocks are shot underwater from two to seven feet (with varying degrees of penetration) with both the gun and the test medium submerged-
It's not ordnance gel, but it still demonstrates the effect quite well. Discussion of the test's results begins at about 12:00 into the video.