The official history of the Punt Gun leads to questions corresponding to other topics discussed here:
This leads me to wonder the coincidence of early 1800's (Napoleonic wars, War of 1812, Year without a Summer, etc) being the era when Punt Guns are said to enter usage. Were they a firearm of an erased civilization of giants? Humans of our current stature could not wield such bulky weapons without support, so did we re-purpose them and mount them to boats to continue using a found weapon for hunting? And just like the Expositions dismantling fragments of a bygone civilization, around the early 1900's a series of laws rendered usage of Punt Guns to the dustbin of official history.