Haven't tried it myself, but a buddy never goes to the lake/river/gulf/rain puddle without his Kel-Tec P3AT. Uses
Cor-bons, I think, but I wouldn't swear to that... Whatever it is, it's a coated bullet (wax, maybe?) to make the round waterproof.
He's not scuba diving, mind you, but he's submerged it while swimming and then shot it to test, and had no issues. Uses a belly band
under his swim trunks.
As for me, I just make sure that the 12-ga flare pistol on the boat stays loaded.
