For your Consideration
http://www.bsaoptics.com/scope.aspx?productID=46

Horizontal (Windage) turret has a cover with a hand adjustable turret under it.
I usually remove it at the range and replace it when I am done.

Vertical (distance) turret has no cover and is marked for various ranges.
I find this easy for firing at different distances at different targets.
It also has different turrets for different bullet weights.


I Have had mine for a while now, Holds Zero when my son doesn't spin the turrets for me. I use mine because it works well with the old man eyes.
Not blind yet, but probably need a little help past 300yds.
Reticule is simple, operation is simple. solid scope for the money ($159.95)in my opinion.

all of that said.
Remember 5.56 NATO and .223 REM Ballistics are going to be different and you will have to adjust your range accordingly.
other than that, I like it fine.