[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 ...

The basic methods of rifling a barrel are known as cut ... The fabrication process usually requires lapping to smooth out tool marks. Some of the most accurate and expensive barrels made are ...

For more than 400 years rifling was cut into a barrel, each groove being cut one at a time. The process of broaching—having a tool with progressively deeper buttons along its axis—allowed ...

The barrel rifling tool is a hack unto itself, starting off with a steel rod, wrapped around a larger pipe and tacked into place. A drill bit was attached to this auger-like device, the barrel was ...

Finally, Precihole’s button-rifling machine forms precise barrel grooves at speeds up to 80 IPM. Depending on the machine model, rifling size can range from 0.15 - 0.59 in., and depth from 24 – 60 in.

Tool life for the process varies with the amount of stock removal, which typically runs 0.002 in. to 0.004 in. Hogan also said that the crosshatch pattern the honing machine leaves on bore surfaces ...

which is the most time-consuming method for rifling a barrel. Krieger claims their barrels will last longer than button-rifled barrels. Krieger does not offer drop-in barrels except for the AR15 ...