I have and love the vortex scope you mention. It currently sits atop a rem 700 .243 with 26" bull barrel in a B & C stock. When I havent over done the caffeine it shoots in the upper .1's and low to mid .2's. Got luck on my first reload try with Berger 95's and 42.1 grains of imr4831. The velocity is really slow, at 2775 fps, but I never shoot that one past 400 yds so its fast enough. I'm sure there is a higher node up there but I have others to shoot for hunting or longer targets. Anyway the Vortex works darn well out to at least 400 for me. I also have the NXS, and it's also lighter and a great scope. I would guess the NXS would be better for harder use, but I have nothing other than gut feeling to back that statement up.