TexasCHLforum.com

I don't believe getting wet hurts ammo in any way whatsoever, assuming you wipe the rounds dry afterwards.

If there is such poor neck tension that water could possibly get through into the case, you already have poorly-made ammo waiting to go KABOOM when you get bullet setback feeding the round. And you surely have primer pocket problems with loose primers falling out if you ever thought you'd get leakage through the primer pocket.