I have heard about leaving your rifle outside because of the barrel condensating or sweating. What do you do when traveling? Can't store in a warm pickup cab, and should a barrel plug - balloon be removed to allow it to breath? What to do when the weather turns from hot to cold. I've never dealt with this before as this is my first year hunting with a ML. My buddie just ruined an awesome elk hunt because of this and not knowing how to deal with it.