a duplex load to assist ignition needs only be about 5 grains in a rifle, be sure to tap it a bit to settle the powder into the breach
in a single shot pistol it only takes about 2 grains and also be sure to give it a tap tap tap to settle powder down into the breach
revolvers do not need a duplex load
in a flintlock, you only need black powder in the pan if you have a good fire channel, keep it picked and the barrel swabbed and the black powder in the pan should ignite the pyrodex load every time
in a single shot pistol it only takes about 2 grains and also be sure to give it a tap tap tap to settle powder down into the breach
revolvers do not need a duplex load
in a flintlock, you only need black powder in the pan if you have a good fire channel, keep it picked and the barrel swabbed and the black powder in the pan should ignite the pyrodex load every time