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I read about small single shot pocket pistols and how they were used for self defence in the Old West. I found a modern experiment measuring the power of these pistols, and surprinsingly a bigger load of gunpowder increased the velocity remarkably despite the barrel being very short. A 15 grain...

I saw an air gun that shot arrows very accurately, which made me wounder if something similar could be made using gunpowder? I made two versions of the concept, here’s a see-through picture: The airgun used the ”arrow over gunbarrel” concept. It used 7-8 inch long arrows over a barrel of...

I thought about how modern hollowpoints expand on impact, transfering its energy to the target by mushrooming, which requires that the bullet travels at high velocity. Why didn’t we invent bullets containing gunpowder instead? I’m not talking about the bullet itself exploding (with the danger...

At which caliber does a lead roundball, like those used in cap and ball revolvers, have the same stopping power as a modern 9mm hollow-point bullet?