Today, 17 Aug., Kibler SMR, a.k.a. "Clementine", .36, 40 gr 3F, .020 patch cut at muzzle, Hoppes lube, .350 RB, 25 yards, off hand, gusty windy, 60 degrees.
Flint was not sparking well, only a couple sparks each time, so in this group of 5 shots I had several where it did not ignite the prime. I was going to put in a new flint, but my flint pouch was empty. I tried to knap the flint I had (removed from the lock) and on second tap with knife blade a big C shaped chip popped off leaving two long corner points on each side. Knapping them off would have left a flint too short to hit frizzen. So I headed home.
Also, after every shot the pan was covered with wet oily black residue that had to be wiped out with a patch. Humidity today was quite pleasant, though we have been warm and humid. Not sure if this was part of it leaving residue like this or not.