Re: Acog On Ar-10
IDK, my biggest problem with ACOGs has been the eye relief, or lack thereof. If I remember right, the TA11 has a pretty short eye relief at around 2" or so. Although a .308 really doesn't kick that hard, you do have to take care not to pop yourself in the eye with the scope.
For the kind of money that the TA11s go for, I'd be looking at a 1-4X Nightforce. It's going to be about the same size and more flexible, although it won't have the cool illuminutation.
If you've never owned an ACOG, I'd suggest that you try to check one out before you buy. ACOGs are sort of a love 'em or hate 'em sort of thing. I know lots of guys that got them because they thought there were cool, but wound up getting rid of them after finding that they are a pretty specialized optic and not a good all around optic.