(Condensed from "Handegonnes in the Middle Ages", CA #84, by Justinian Syke)
A Brief History
14th Century: Earliest cannon, in 1326. An inventory in 1340 is the earliest reference to a portable firearm. By 1364, references to handheld firearms become common. These were miniature cannon barrels, some mounted on poles or handles, some simply built with a hook to fit over a fortification’s wall and soak up the recoil. First reference to these as "handguns", 1386. Late 14th Century, slow-match – woven cord impregnated with nitrates by boiling with gunpowder.
15th Century: The stick gets shorter and thicker, mutating into a shoulder stock. Gunpowder is improved. Serpentines (pivoting metal bars with match clamps start to appear – as early as 1411 Matchlock becomes standard for 250 years. By the end of the 15th, matchlocks have replaced hande-gonnes.
16th Century: The last 100 years of the SCA’s period show some advances. The wheellock comes in by 1510 Hunting guns feasible – no match for the game to smell. Pistols become practical. With the advent of civilian sporting arms, rifling comes in. Firelocks come in around the 1550s, with the Snaphaunce, miquelet and dog locks. While there may be true flintlocks dating from the SCA’s period, the earliest known surviving piece is from 1607 – just out of period.
Safety
The basics, for all guns
The gun is always loaded. Doesn’t matter if you just cleared it, treat it like it’s loaded anyway.
Never point it where you don’t want a hole. This includes at your own anatomy.
Finger off the trigger (or other firing mechanism) until you’re ready to shoot.
Never shoot unless you’re sure of your target and backstop. Remember, bullets go through things.
Never load a piece unless you anticipate a need or plan to fire it.
Muzzleloading and Blackpowder safety
Black powder is flammable – watch your flames and sparks.
Always measure your charges. Pouring random amounts of powder down a gun makes it into a pipe bomb.
Check with the maker or seller, what your gun’s proof rating is. Never exceed the proof rating.
Mark your ramrod with an "empty" line. If it doesn’t go in to that line, there’s something in there.
Drop a rammer down the barrel before leaving the firing line.
Blackpowder guns are just as dangerous as modern ones – they just don’t shoot as quickly.
For most period guns, you’re carrying around a burning rope, and gunpowder. Be careful.
Paper cartridges may be just out of period, but they are your friend. A brazier and open powder barrel, aren’t.