You are not adding anything relevant to this topic… and you should reread it, because you missed some important details.
Guns where around. (I allready mention that one source tell us that 25% of the ranged handweapons used by the Hussites where firearms. Is is mentioned in the different books about the war, published by “Osprey Publishing”)
They where cheaper to make than crossbows.
Off cause this act is some 15years before the start of the war… so they are likely not yet that common… but they are off cause known and in some use.
Iam very much in the “we want guns” camp. Because they where used.
But it should be done properly. It would not be a weapon someone pulls out from under hit shirt and stats shooting.
One option could be to have people taking about them or similar, with out actually having one as a functioning weapon.
About the movieclip.
Notice he uses pre-measured charges.It is offcause logical to do so, but I haven’t seen any evidence to support their use during this period. Jump to around 1500AD and we see the illustrations of the bandoleers carried by “handgunners”
Accruacy:
http://www.musketeer.ch/blackpowder/handgonne.html
"I can hit it more or less consistently over this given distance of 25 strides, although, among five rounds fired, one will probably be a miss."