What about gunpowder, cartriges&handguns in current state of the mod?
Can you tell a bit about industrial chain for them.
Also, are they more powerfull then heavy crossbows or not? 
Saltpeter (ground at screw press first) + sulfur (ground as well) + fuel + bag = gunpowder in a bag. Balls can be made from various metals, which alongside gunpowder and one unit of cloth, create a set of ammo.
The hand cannon itself is made from one bar of tempered steel, plus one helve.
As for power, it has really deep penetration and high force / velocity multipliers, but due to the the extremely small size of the projectile, it shouldn't damage organs to readily unless it hits something important. On the other hand, it really shouldn't matter what armor they're wearing, but that's not been tested yet.
Though, as an important note, this is for the most recent, unreleased version, which is presently in process, and not released.
