I'm looking for a better scope for a 223 that will be used on paper and vermin. I have a Nightforce NXS 5.5 X 22 and like it very much. This is mounted on the custom rig. Was thinking about a Vortex (I don't know which version) as opposed to a Nightforce SHV for a factory rifle. Thinking I want a 3X15 to 16X. Any thoughts on the better Vortex scopes?