[Jeff Rodriguez] has been busy testing a feasible DIY method for rifling a barrel and has found some success using salt water, a power supply, wire, and 3D printed parts to create the grooves of ...

[Jeff Rodriguez] has been busy testing a feasible DIY method for rifling a barrel and has found some success using salt water, a power supply, wire, and 3D printed parts to create the grooves of ...

while two gun-drilled barrels are precision reamed and two others receive the final step of button rifling at the same time. Engineered automation is routinely included in the developer’s deep-hole ...