This is an automated archive made by the Lemmit Bot.

The original was posted on /r/fosscad by /u/Bjust_or_Bdead on 2025-02-05 18:43:01+00:00.

We need a freedom ammo! I see all these cool projects, but I cannot buy the ammos for them. PIP-9 is very low power, and 9 mm deep is not that strong (0.4 grams of powder max).

In my pics, the blue parts are printed. The bullet insert comes from airgun, no need for papers. The bullet support is simply threaded and screwed inside the ‘‘plastic brass’’.

The tube is the simple steel insert to contain the pressure. The primer is a 209 shotgun primer, freely avaialble too. Can be replace by pistol primer obviously.

The powder can be black powder, golden powder or crimson powder. Very easy to make, and can cycle few rounds if you clean your weapon. Golden powder leaves half the residues after combustion compared to black powder and can be cleaned with water only.

My fear are on the extracting groove. How solid should it be? Regarding extraction, you can taper the cartridge if needed, to ease it.

Anyways, I know, I should test it myself and I will, but I just prepared a 3D to relax between the PCB making of my coilgun. What do you think?