For those that have used both the NX8 4-32x50 F1 (mil-c) and the ATACR 4-16x42 F1 (mil-r), which did you prefer and why? I was leaning hard towards the NX8 but keep reading how difficult the reticle is to see at low power. Is the ATACR with the 4x erector any easier to pickup the reticle in lower powers? Scope needs to be able to handle shots from 30-700 yards.