I just leave the lock and butt under my coat and arm pit...I also prime with 3F as it doesn't absorb water as much as 4F...Started with flintlocks in the mid '70s...Used to seal with bees wax around frizzen, don't bother now...Just keep the lock area dry and the barrel pointed down and you won't have any problems...If the rain lets up I might reprime, but if its poring, it stays under my arm...