I have muzzelloader hunted since the 80's.I refuse to get my weapon in rain or drizzle for this reason.Dont take much for a misfire even with the new inlines.
Sit 4 hours in the rain one day this week. Brought the gun home and used the compressor to blow the water out of the hinges and oiled it. Took a doe the next morning with the same load from the day in the rain. This Optima has yet to miss fire due to weather.