Gun Oil

What gun oil should I use if i’m shooting in the rain?

I have a fairly new (One shoot old) Miroku O/U shotgun. I will be shooting this weekend and it is meant to rain all weekend (80% chance of 20mm or just under an inch). I have oiled and greased the gun for the first shoot. I’m now wondering what is the best type of oil to use with my gun, before and after the shoot, which will protect the gun if it rains.

just make sure you have a thin coat of oil on it when you go out, make sure you oil it when you get inside right away, and don’t put it in the guncase (except for transport) but let it airdry for a few days after the hunting trip.

Royal Purple Gun Oil