That can't possibly be good for the gun. I'll be keeping mine out of the pool...but thanks for sharing.
-Stoic Joker
Probably. But if I understand correctly, it's probably much more a job for an AK-47.
-Renegade
Yeah. Always bring an AK-47 to pool parties!
-f0dder
Yup. I have a little list. They won't be missed.
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Addendum:
Just thinking out loud...once you're done with the 'marketing' video - why bother using a real gun at all? Just suspend the cartridge most of the way into the water and electrically fire it. Or fire it through just a rifled barrel the same way if it needs spin to get the proper effect. The barrel is already flooded using a real gun anyway. Rig up a floating block of some sort, load up ten shells at a time, and
voila!...you have an assembly line going.