Well I messed up. I had 5 1/2 bricks of the Walmart Federal 22 LG hollowpints sitting in my ammo can on my porch which is covered. The can was sitting 3-4 ft back from the edge. That night a storm blew in (I didn't hear a prediction for rain) and the rain came in almost sideways. They weren't sitting in water but the cardboard packaging got damp and there was some moisture in side the unopened boxes. After the moisture dried off the rounds, there is a white almost chalky film where the bullet meets the casing. I'd say that 75-80% of the rounds fire, some sound a little weak, some sound louder than normal, some don't fire at all. Is there anything that can be done with these to fix them up? Would putting them in a black ammo can in the sun (kind of bake them) help dry them out? I don't think they would get hotter that 212 degrees and I don't know at what temperature the rounds will fire. I'd like to hear your thoughts as to what the best route is here. I guess these rounds have now been relegated to target only, bolt action only as the duds are a pain in the ass with a semi. Thanks for any help you can provide!