[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 ...

In operation, the UNISIG R-4-2-2 production cell uses a smart conveyor to load four barrel blanks simultaneously into a UNI four-spindle gun-drilling machine. Drawing from a bulk ... then loads them ...

Barrels have different inner diameters, as well as rifling, which causes a projectile to spin and ... of experience in the development of ECM processes,” stated EMAG Group technical sales manager ...