In addition to priners, smokeless powder is also difficult to home manufacture. Black powder is easy enough, but it's not powerful enough to cycle most modern s

In addition to priners, smokeless powder is also difficult to home manufacture. Black powder is easy enough, but it's not powerful enough to cycle most modern semi-automatics and fouls up the barrel something awful. Something like ammonpulver would be comparable in power and cleanliness to modern smokeless powder, but is pretty corrosive and gets ruined if it absorbs too much water. The same types of people eho develop 3d gun models are also putting effort into developing alternatives for primers, powder, and cases. Homemade metal barrels were an issue a few years ago but ECM barrels made it easy to make them at home with only a couple hundred dollars in tooling.