I am trying to decide between these two scopes. I want it for shooting out to 1000 Meters. The 5.5-22 has more adjustment range, but I don't see why a tapered base couldn't be used with the 12-42. I think being able to crank it up may allow me to shoot through mirage, etc. I know the 5.5-22 was in favour with the 1000 yard guys, but with the advent of the 12-42 NXS, it seems I'm seeing more of these higher power versions in the winners circle lately. Am I wrong? Either way, I'm sure I'll be very satisfied.