The beauty of the Reticle Tru is no external references, such as level, plum bob, door facing, etc. are needed. The only issue is the relationship of the reticle to the axis of the rifle. That's it, the elegance of simplicity.

Edited to add, I just read the Rifle article by JB on line. As always, to the point, concise with good explanations of how and why.

DF

Last edited by Dirtfarmer; 01/02/13.