And then you'd have to gather the ingredients to make gunpowder. It would only take 20lbs of bird shit and/or bat shit to get enough potassium nitrate to make one bullet. Then you'd need sulfur which you can get from volcano's and charcoal.i wish someone make gun mod, because we have boss using shotgun that mean guns is lore accurate here.
so beat the boss get the shotgun, then able to learn craft a guns.