Especially in the Fallout universe? Me and my friend were having a debate on if guns were going to become obsolete 100 years after an apocalyptic scenario. Its easier to make a gun than it is the ammunition, in this case smokeless powder ammunition. The problem doesn't lie in the casing or bullet itself, its the primer that causes that chemical reaction to generate heat and send the bullet down the barrel. I argued that its not impossible to make bullet primer but its just very difficult. Because making requires a hell of a lot of knowledge and chemistry, some trial and error, and even a few manuals if people still know how to read 100 years after that apocalyptic scenario. And it also requires industry and by industry- the tools and machines to make the primer which would mean old factories and maybe new ones to help rebuild civilization. But also how are they going to distribute the ammunition? My friend insists that we'll lose the knowledge for such things like smokeless ammunition and we'll go back to using flintlocks , rifled muskets, and cap and percussion revolvers and rifles. And if not those then primitive weapons like spears, bows, and swords. And simple black gun powder is extremely easy to make. I wanna know your opinions on this. Do you think it would possible to keep manufacturing modern ammunition and guns a century after the end of civilization?