[Hammerslagger]

Frankly. I am a flintlock man except for percussion revolvers. I have never personally used anything but the real thing (Black Powder) for propellant in loose powder and ball arms. I have seen people have problems with the substitute propellants.

Therefore, I am not likely much help here. What Alpo states, I have no disagreement with.

I am not going to go into detail here; and I am certainly not advocating the use of anything but Black Powder or "approved substitute propellants" in loose powder and ball arms.

However, let it suffice to say that I know that a percussion cap will ignite Bullseye reliably. A percussion cap will not reliably ignite propellants like Unique and some others.