does it really matter? Has anyone ever done a Empirical study between the two?
SM
The testing I did was not with Pyrodex, but with another bp sub. The product was made by BlackMag Industries. They produced a “priming powder” called BlackMag Flash - “for the serious flintlock shooter” (their words).
A hunting article in MuzzleBlasts mentioned it as a replacement for Bp priming powder. I timed it as I do for Swiss null b, and Goex ffffg, fffg, ffg, fg, and cannon grade.
The sub was only timed as a pan powder. It was considerably slower than any BP I timed. In fact it was slower than Goex cannon grade.
Assuming a good lock with a good flint, Swiss Null b will time in .0300 seconds, Goex cannon .0700, with other BP samples found in between. BlackMag flash ended up .1400. - basically twice as slow as Goex cannon.
I gave some of this to a friend who shoots offhand at Friendship. After a couple practice shoots, he gave it back, unwilling to fire record shots with it.
As I mentioned I did NOT time other BP subs in the pan. I won’t speculate about others. BTW, BlackMag Industries is no longer in business.
Regards,
Pletch