Thread: 20 Moa measurements

Can someone please give me the measurements of each end of a 20 Moa rail in mm or point of a mm.

Want to mill off the difference and lap the rings to give me 20 Moa on a set of Talleys.

Has anyone tried this?

You will have to work that out - 20 MOA is 1/3 of a degree

clamp the rings on to a bit or bar is easiest an them mill them as you will have to lap the f&$k out of them.

20moa amount off the front one will depend how far apart your rings are, google should help you

About 1mm off the front normally

I think you would be better of bedding your bases on the receiver or bedding the scope tube on the ring at a desired angle.
It is not easy to explain how to do it.

Originally Posted by tui_man2

clamp the rings on to a bit or bar is easiest an them mill them as you will have to lap the f&$k out of them.

20moa amount off the front one will depend how far apart your rings are, google should help you

About 1mm off the front normally

Should if put that it is on a T3.

Got a piece of 1" bar to clamp them to.
Have you done this before Abe?

Yeah mate it's the way to go make sure they level with each other so sit square on action not lean over I'll find the table tm work it out wrote it somewhere

My trigonometry is crap. I found a table on the web using shims under rings with a 4" spacing.
From memory, using that table I milled 0.024" of the top of the front Optilock base, instead of using shims under the rear ring, giving me approx 20 MOA.

B