Modern ammo can get wet and stay good to go. Depends on how tight crimp around the round is and how well the primer is glued in :-D i have taken my G19 diving off the coast with me and plugged a few rounds into the ocean floor :-D worked fine and the ammo was good afterwards.
Better quality ammo tends to stand up to water much better.
Your cor-bons should be fine. But i would replace it for CC. just to be safe.