IOTL percussion ignition is invented by Alexander Forsyth and others in the early 19th century from which it was refined before Shaws percussion cap replaced flintlock ignition on most military firearms from the 1840s on.
How much earlier can percussion ignition be invented and how much earlier can it become the main form of ignition on military arms? What effects does this earlier invention have on the developement of firearms? Ex. does it lead to earlier breechloaders or cartidge weapons?
How much earlier can percussion ignition be invented and how much earlier can it become the main form of ignition on military arms? What effects does this earlier invention have on the developement of firearms? Ex. does it lead to earlier breechloaders or cartidge weapons?