I had my ammo stored in a plastic bin in the back of the truck for EOT when it was held in Indiana. I had smokeless ammo for side matches and black powder ammo for the main match. It had rained several days before the match and my tonneau cover leaked funneling all the water into the ammo bin. all the ammo was sitting in about 3" of water. As luck would have it I live about an hour away so I went home and got new main match ammo. The wet ammo I took home and tried shooting it and all the samples of black powder ammo and shotgun ammo shot fine but the smokeless ammo was horrible. I ended up shooting all the black powder ammo at monthly matches without any problems but the smokeless ammo even after trying to dry them out in a case dryer for days were a no go. When I pulled the bullets some of them actually had water pour out of them.