Now if theres a collapse the bow would be a requirement to know how to use and build.
Now if theres a collapse the bow would be a requirement to know how to use and build.
True. But compared to the chemical / metallurgical / etc. skills and supply chain needed to keep producing modern bullets...making and using bows is trivial.
[Edits - emphasis added.]
The using part seems like it requires a level of skill that might take longer to acquire than skill at hitting a close target with an automatic gun.
Meanwhile I can build a gun with not much more than a block of wood and a pipe, as for bullet availability. As a species we've produced a lot of those and a lot of them can be found in a lot of places, so I don't imagine a bow will become feasible until well after the collapse.
Which is to say if we got sent back 200k years to anywhere in the world of our choice, after 3 months in a library studying the books of our choice, the bow would be easier to create.
Unless you were fighting other humans with ranged weapons, you'd be far, far better off with spears and traps.
hmm doubtful. even with a musket you need gunpowder, primer, trigger mechanism, some sort of boring inside the barrel
in short a lot of specialized materials and equipment are needed for even the most basic gun
A bow you just need trees and some woodworking tools and some sort of metal for arrowheads.
The cartridge can be re-used. Gunpowder made of three elements that are widely available. The lead bullet is one of the easiest materials to find and work with, lead is a low temperature metal used for thousands of years; you can cast the stuff in a literal campfire.
The one part you might have a hard time with is the primer, but you can stock up on those or use a black powder rifle and flint (Look up successful attempts to make the Gorn gun)