have heard about this tutorial in SGN and yes teh brass bolt would be helpful for that....
great idea on your part!!
ok on th 1/8"... thats right where mine is.
about that mag angle: it was a clean demill and i just set it back down and made sure it was centered and as deep as it would go. it wont go any deeper as its right on the bolt now, but it is possible that i could have wiggled a hair when i tacked it in and changed it.
thing is it looks perfect and by hand operation never fails to feed or eject and under fire it didnt start till after about 700 rounds.