Re: M1A
I went with a 2x7 scout scope, burris IIRC, with a ballistic plex reticle on a socom I had, it worked pretty good .
I put a 3x12 horus vision on my loaded model and it works pretty good for what I want it for. I did that because I didn't want to be twisting knobs in the heat of things ( not that I have been in the heat of things, but...) There is definately better glass than the horus vision, but I didn't want to spend a ton of money for glass on a rifle that doesn't shoot as good as my bolt guns.
Not a slam on M1A's, as I love mine, but they are what they are.
JH