Brown Bess is a wonderful place to begin…nice big rock lock, lots of beautiful sparks. I put just enough powder in the pan to fill it 1/2 way, or even a little less. Make sure the flash hole is around 0.060” to 0.058”, and you should get consistent ignition shot to shot. I’ve used my Brown Bess Carbine to take geese, doves, pheasants…rabbits, & squirrels…and 2 deer.
I have a set of 2 powder horns on a strap; the bigger one is my hunting horn with ffg, the smaller horn is ffffg, for priming. When I first started using flintlocks, (my Brown Bess) I primed with 4fg. It quickly hit me that That rock is so big, I could prime strait from the hunting horn. That 2 horn set doesn’t see much use these days, even with a little .32 calibre, I prime from the horn.
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Whenever I’m in the field or at the range with a flintlock, I have a white muslin clothe draped at my waiste, over my belt. It’s a thin cotton muslin cloth. I use it, after each shot, to wipe the pan, the flint…also checking, at the same time, that the flint is still held firm…and the face of the frizzen.
I go through my loading routine, then when I put powder in the pan, I always pick the flash hole, before closing the frizzen…you want to use the pick to feel for the grains of powder, through the flash hole. It should feel gravely…
If you’re ever in the field hunting on humid days, or drizzly wet days, about every 15 minutes or so…dump the pan and go through your wiping routine with the cloth…the blackpowder residue will suck moisture out of the air, and quickly turn your pan into black soup, the face of the frizzen will become damp and wet, and the flint (especially the underside) will become damp as well. Anywhere there is blackpowder residue, it will absorb moisture and become wet. I always have that white cloth looped through my belt when shooting a flintlock.