OT - Shooting Underwater?

[AGE]

Guys,

The reason that I thought it might be possible to use a short barreled .44 underwater is that a barrel full of water would weigh less than a 300 gr. bullet now commonly used in .44s. Perhaps a 180 grain mild load would function without pressure problems.

However, water is incompressible, shock waves are generated, etc. etc. We all have heard of problems shooting rifles with bore obstructions--? Anyway I wonder. Surely this has been tried by somebody. I had hoped one of our members might know.

Now then, perhaps the concussion would cause severe problems to the shooter. Also, penetration shooting into water isn't great (probably less that 4 feet or so) from what I've read so maybe the gun would be useless.