How would you compare the two scopes based on other characteristics, such as turret/click feel, eyebox, depth-of-field, ease and smoothness of adjustments, etc.? Maybe I'm not looking hard enough, but there dont seem to be a lot of side-by-side reviews of the S8 with similar scopes.
Turrets:
Vortex no slop, not really any "play", very stiff lock/unlock.........kinda "thunky"
Sightron very slight "play", both my examples have very nice fairly "light" audible clicks, kinda "snappy".
Turret feel is very personal preference, I like the Sightron Turrets for varminting and plinking. I'd probably prefer the Vortex Turrets for competition as they are locking and have a little more resistance when dialing.
Eyebox:
Vortex..........better than Sightron. More forgiving on the higher end, from say 25-36x
Sightron.........barely more fickle than Vortex. Very good.
Comparison was on a tripod, where it's exaggerated. Neither scope has a "picky" eyebox on any power. They are both well done. Vortex a little better.
Depth of Field:
Vortex...... slightly better than Sightron.
Sightron.......better resolution in heavy mirage than Vortex. However, the side focus parallax needs "tuned" more often for maximum clarity.
Vortex has always been really good with G2 and now G3 razors in offering a very forgiving parallax adjustment.
Ease/Smoothness of adjustments:
Vortex.....
parallax adjustment a little stiff, mag ring a little "too light" for my taste, the easiest scope to change powers that I've ever used.
Turret feel is a little heavy for my preference.
Sightron......
parallax adjustment is very nice and smooth, just right. Mag ring is a little too stiff (maybe will lighten a bit with more use). Turret feel is "nearly perfect" for my preference. Turret clicks could provide a slight bit more resistance.
Image quality and characteristics:
Vortex....
Very Warm. Rich colors. Browns are enhanced, greens are enhanced. All shades seem to be a bit "rose colored" glasses "enhanced" in a way. More notable when comparing with Bushnell DMR3 (USA Made Burris XTR3) and Sightron S8.
Very good glass. Very good contrast. I don't prefer "too rich" or over "warm" color in a scope. The New Burris XTR Pro is the same as the Vortex here.
Sightron......
Very "clean", bright as hell. White and yellow are bright and don't look "enhanced", just beautiful. Colors are more "natural". Not cold, not blue, not dark. Bright/Clean..... AMAZING to my eye. Greens/Browns are "natural"
Very good glass. Good natural colors, great contrast (maybe a bit less than Vortex.....but better pure image resolution) Very good resolution in heavy mirage. Bested the G3 from 30x-36x in these conditions.
Resolution......
Better than G3 (Yep, I said It)
Conclusion
At under $2.5K for the Razor it's a bargain.
At under 2K for the Sightron it's a bargain.
Personal preference is the deciding factor. Both are AMAZING>
So are the new DMR3 from Bushy and XTR Pro from Burris.
Amazing optics under 2K out there these days.
Hope that helps.
P.S.
I really like the new Bushy DMR3. The Sightron glass is "better overall", however the glass characteristics are very similar. The Bushnell DMR3 is a stunner for under $1200 new (With Affiliate link discount)