Then you will DEFINITELY NOT want to have any fouling in your barrel period. Not sure where you will be but every altitude hunt I have been on in my considerable years has been like a woman when it comes to weather. Never know when it's gonna change and never know if it's going to be a storm or just a mild fit Not to mention altitude change means temperature change as well as moisture density. That equals condensation in the barrel. Stick with the plan, clean your bore down well for EVERY shot, cool it, and basically shoot it at the range every shot as a cold clean bore. Figure where that shot is hitting at consistently.