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The 1/4-28 die from Brownells is adjustable.
If the rear screw is cut down a little, it can go in straighter. *
The rear pillar for me would be a 3/8" O.D. tube 0.304" I.D., cut to 1.258"
The male screw / female threads need to be worked until the tube clamps square on the screw head and the receiver. The rear screw relationship with the front screw does not matter. What the rear screw clamps [that tube] parallel relationship to the plane that the front screw clamps [for me that is the bottom of the recoil lug, but for everyone else it will be the flat bottom of the receiver behind the recoil lug] to is what matters.
*yes, attack the cheap part first, but if you have to, put valve grind compound on the threads and work the screw until the screw head and the other end of the tube sit square.
Whoops, 1/4-22
Last edited by Clark; January 29, 2016 at 01:39 AM.
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