If you want to bring your gun indoors In the winter after a hunt, take a shot primer, use a baggie and put your primer in it so you will use just one layer of plastic. Put the primer in the plastic into your Breech plug. Cut off the excess plastic, that seals the breech. Now Close your gun.

Take plastic wrap or a plastic baggie and put it over your muzzle Then wind a rubber band tightly around the barrel and plastic. Your barrel is now sealed.

Do this outside where it is cold. The humidity is Lower outside than in your house, when you take the gun into your house the barrel will slowly warm, decreasing the humidity level even more than it was outside due to properties of air and water and temperature change. Now you will not ever have to worry about condensation or moisture fouling your barrel. started doing this with traditional guns in 1984 and now Break action guns. I have never had a failure to fire using this procedure, regardless of how cold it was outside or how warm it was inside.

I like to leave the seals on the barrel until I get to where I am going to hunt, gives the gun time to cool down again. Though I have many times pulled off the plastic when I get up in the morning. It is good for hunting in the rain also, I have never tried it but I have been told I could shoot right thru the plastic, if I had to, with no loss of accuracy.