I fire off the load at the end of each day. I don't understand the reluctance to do this. It doesn't spook deer. In fact, I was with 6 other hunters unloading our guns by shooting at a damaged apple tree that had to come down, when 3 deer ran across the meadow where we were shooting. It was dark, and of course, NO ONE'S gun was loaded when the deer appeared. It was the last deer any of us saw on the property that weekend.
I guess it comes down to not wanting to clean the barrel out after shooting out the load. Its very short work- much shorter than when I clean the gun after a long session at the range. I live and hunt in the middle of the country, where relative humidity can be quite high in November, when our firearms deer season takes place. Condensation is as much a problem as getting water down the barrel when it rains.
As to shooting flintlocks and percussion guns during cold weather, you can keep the powder dry by using an OP wad between the powder charge and your PRB, or bullet, or simply put some cellophane over the muzzle before placing the patch and seating the ball in the muzzle. Then trim off the excess plastic. The plastic will provide a good seal against moisture fouling the powder. The same cellophane can be put over your nipple on a percussion gun, UNDER the Percussion cap, to keep moisture out of the barrel from that end. Carried that way, the gun will fire in the worst rainstorms. With a flintlock, you can use the same approach to protect your powder from the front of the barrel. At the rear, you have to plug the vent hole with a toothpick to seal out the moisture. Use the round toothpicks often sold for birthday party use. Again, carried this way, so that you prime the pan just before you fire the gun, a flintlock will fire in the worst of rainstorms.
Do store a loaded, but uncapped, or unprimed, rifle out of your living quarters over night, when hunting in cold weather. The moisture and heat differential in the cabin or tent where you sleep will cause condensation of moisture inside the barrel, and even cause moisture within the powder charge to condense and foul the powder charge. That is why I don't take the chance of having a gun that may not fire the next day.
That hunt when all 7 of us discharged our guns, 5 of the hunters were shooting percussion guns. NONE of them discharged when the guns were first fired. We 2 flintlock shooters had to " loan" them all priming powder- and I had to get out my nipple wrench to remove and replace the nipple on one man's gun, because he didn't bring his nipple wrench with him!-- before the guns would fire. Both flintlocks fired the first time we pulled the triggers. :cursing: :surrender: :thumbsup:
Learn your "lessons" from other's mistake, not your own. Its far less painful. :haha: :hatsoff: