What was the earliest technology used for a "hand gonne"?

The earliest technology used for a "hand gonne" was indeed a small cannon with a touch-hole for ignition. This represents one of the first developments in hand-held firearm technology, combining the principles of artillery in a more manageable format. The hand gonne typically featured a metal barrel and used gunpowder as propellant, marking a significant advancement over previous projectile weapons.

This technology emerged in the late 14th century and provided an introduction to firearms that would evolve into more sophisticated weapons. The touch-hole allowed for ignition of the gunpowder, which was far ahead of the more advanced mechanisms that would come later, such as flintlocks or matchlocks. In contrast, options like the sling shot and crossbow are examples of projectile weapons but do not utilize gunpowder, while the musket with a bayonet corresponds to a later period in firearm development, thus being inconsistent with the definition of a "hand gonne."