So I've spent a lot of time testing all of the scopes I own and really need to take the time to write up the results. I really don't have time right now to do the proper writeup, but here's the basics:
I built a very simple test platform by bolting a picatinny scope base to a long extruded rectangular tube, and I am then able to clamp that setup to a solid bench. I used a reel tape to measure off the exact distance to an MOA scale and was able to create a very uniform test setup. I tested every scope that I own for turret click accuracy, turret click repeatability (or precision) as well as reticle accuracy.
The results were far from what I expected. My most expensive scope was off in both turret click accuracy as well as reticle accuracy.
All of my scopes had perfect turret click repeatability, at least down to the levels that I could tell with my eyes... which is how we use a scope so is all that really matters.
Comparing my VX6 3-18x50 and the NF SHV 3-10x42 is interesting. I think those two scopes have different applications as the 10x max magnification on the SHV limits the SHV's long range capability. Both of those scopes weigh the same so in my opinion the VX6 is the clear winner for a backpacking rifle because of the added magnification and, at least to my eyes, better optics.
I love that the VX6 has a simple MOA turret and MOA reticle, I am not a fan of "ballistic" turrets or reticles that try and estimate yardage for you. The SHV has MOA turrets/reticle as well and the only reason I did not go with a higher magnification SHV, like the 5-20x56, is simply the heavier weight. After testing out my SHV I think they are a great scope with lots of great features.
When I get more time I'll write up the results of each scope that I tested, but I really don't think there's a whole lot of value in each scopes performance as I am testing only a single scope from each respective make/model. I think the more valuable aspect is simply how I created the test setup as it removes the rifle/shooter as a source of error.