This is probably a general question, although it’s related to a role-playing game I and some others are setting up. It’s set in your average post-apocalyptic future, and we’re currently debating about firearms ammo.
The question is, if you can manufacture (not reload, manufacture) cartridges adequate for revolvers and bolt-action rifles, do you then have to concede that cartridges for semi- and full-auto are feasible? Or is it plausible that your production facilities remain just primitive enough that too many rounds fail for automatics to be practical? I favor the latter, since given the scenerio even semi-autos would give our PCs near-overwhelming firepower, and the limitations of less advanced firearms would make it more interesting. On the other hand, it seems like historically once cordite and other propellents replaced black powder, the first semiautomatics were developed only a few years later. So how much more exacting are cartridges for automatics vs. manual feed guns?