My M6 Scout Build

[Jamman]

With all the home made gun craze going I decided to build my own M6 most people dont even know what it is
so here is a pic hope these pics show I am new to this site. The M6 is a survival weapon the USAF used for pilots in survival situations. It has a interesting history and a very simple design.Well enough yammering I am making every thing home made so the .22 barrel has become a challenge. So far I welded a 1/2in cupping and a 3/4 couping together to form the receiver/ holder as the couplings just hold the 2 barrels being a rim fire gun. This works for the 12ga but the half inch pipe is another problem. so I cut 3/4in out of a 1/2in pipe and hammer it together to form a 3/8?? ish pipe which I hammered into the original 1/2 in pipe making it double walled. I know a 5/16 steel brake line will hold a .22 but to be legal I need rifling thus the pics of rifling buttons which I intend to make my self. So my ? is anyone have any suggestions as how I should do this I have seen vids of guys grinding down drill bits and one of a guy using 1in hacksaw blade that looks interesting. I figure if I can get a nice cutting edge and a all thread mounted system then by slowly screwing it into the brake line I should get some groves or rifling. I am looking for Ideas not its not going to work comments the fore fathers made flint locks and such out of crude tools why cant we do the same with all the new stuff we now have.

Thank you for any help on this matter

The jammer

https://en.wikipedia.org/wiki/M6_Air...urvival_Weapon