OK, so no WD.

I only have steel ammo for my MBR with the exception of 10 rounds. They are lacquered so they don't rust easy.

Put the nail polish on every round individually? Wouldn't that take an unholy amount of time?

Is that red stuff on Wolf Military Classic ammo nail polish? It is on the casing mouth and the primer edge.

I bought me an ammo can with a rubber seal on the lid, no water is getting in that thing until it rusts clean through.
I put in a few silica gel packets that were inside of a pack I bought, I figure even though they are used there probably isn't enough moisture in there for them to have much effect. They are better than nothing though, mostly just make me feel good.

I have never tried the WD, I just heard someone say that....he did mention not to get it on the primers if you could avoid it now that I recall. What does the WD actually do to them, the actual explosive is encased in the metal on the primer.