Loading so weakly to allow for the displacement of the water in the barrel that the chamber should not be ruptured would render the velocity, energy, and distance as harmless. I do not know this for a fact, just reckoning.
I believe that the use for a .44 mag. underwater would be mostly as an anchor.
But, if you are brave enough to discharge it, I am foolish enough to catch it in my teeth! (100 yards should be safe enough.)
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Noli me vocare, ego te vocabo,
wes
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