On a hunt far from home that cost a lot of time and money I had a few very nice opportunities to take birds well within range - what would usually be a "gimme". However, my shotgun went "snap"! It was raining. I kept the barrels pointed down, so that was not the point of entry of H2O. The musket caps were tight on the pegs. So...it must be where the pegs are screwed into the breach - there's just no other access to the powder. I put some powder in the peg and lowered the hammer on a cap. It went off at the next attempt. Then I got a few more "snaps". I did bring another shotgun, a twin to the first one. It wasn't out in the rain as long but it seemed to work. Each has anti-seize on the threads of the pegs. I guess I should put something around the pegs where they touch the barrels. What do you recommend for that? It's pretty frustrating to loose opportunities after so much effort due to wet powder.