I've written several articles about selecting optics for practical and practical long-range shooting. (Articles section on demigodllc.com).
The 6.5-20x50 Conquest AO has IPHY (1/4 inch) clicks, not MOA. It also has a very limited amount of elevation adjustment (43 MOA). This is per zeiss.com
I'd recommend to look at the Leupold 4.5-14x50mm with the M1, M2, or M3 knobs.
If you have the money, buy per my article.