RE: ?' s after first outing
I assume you are NOT having gas blown into your face when firing?? If so, then something is wrong. When I use 209' s in my Traditions inline, I see NO sparks and flash out of the breechplug area, but there is fouling on the bolt nose, so there is some flash getting out there. I use up to 120 grains of BP or Pyrodex RS with bullets like yours, but 777 is much more powerful, so 100 grains of that stuff would be max for me!