Ninja vs. Dragoon

[Zophar]

Either type would have made sense

Except that piercing, again, makes considerably much, much, much more sense, for so very many, reasons, which I don't feel like repeating.

(a cannonball works on the same principle as a black powder musket bullet, and I don't think anyone would call a cannonball a piercing weapon).

While technically, you're not completely wrong, no person would ever consider a musket ball a blunt weapon. A round ball, though it may be, it's ultimate effect is to pierce it's target. You get shot by a musket bullet, or get shot by a modern day bullet, and the results are the same. It's piercing. If you were talking about rubber bullets, or beanbag rounds, or potatoes, THOSE would qualify as blunt rounds, as their entire purpose is to hit and disable an opponent with non lethal, blunt force.