Building jig

[swordfish]

Thank you prebancolt for responding. The solution was a new set of dies and a new milling machine. I did 1.18 on the front and 1.62 on the back. Used tool steel for the inter die. The outer die was ss angle polished to a mirror finish. The inter dimentions are quoted several places on the web as 1.338. I put the demilled receiver stubs on the die and it seamed loose in the outer die so I clamped it lightly,welded the die, bent a flat and it turned out perfect. Thanks for the help!