I picked up my Winchester model 63-22 and it had some rust on the receiver. I havent shot the gun much but it was the only one that had rust. Luckily there was minimal damage. I was just shocked it had rust on it after 2 months of sitting. it is the closest one to the locker wall and there is a window unit AC next to it. I have one of those electric dehumidity things that you plug in. I know the locker shouldnt be next to the AC but it was the only place my landlord would let me bolt it to the wall and floor.