Wade's World Hunting: Black powder and moisture don’t mix. Wet powder won’t ignite, and many a deer hunter has been disappointed by a misfire on rainy or damp mornings.
However, there are steps that muzzleloaders can take to insure their firearms will go off when desired on those rainy days. Here are tips for “keeping your powder dry” and hunting with confidence that you will, indeed, get ignition and proper powder burn on those mornings when precipitation is falling.