I have made automatic capper for black powder revolvers :)
You can check it out here:
I was thinking someone should really 3d print a 410 shotgun due to extremely low pressures. I'm sure you've all heard of the liberator which uses 380 acp and can work and makes 2 times as much pressure, so if someone made a 410, not only would it be awesome it wouldn't blow up
I need an idea for how do measure or record a gunstock, especially the back part, without a 3d Camera.
I thought about cupperthread, but it is to expensive.
I am looking for something that is dynamical, but stay in the shape i bent it to.