US Optics and Night force seem to be the de facto standard. I use a night force as it's the most scope I can afford. I like the EREK knobs and 58 mm Objective of the US Optics just cant afford it. Recently a company called IOR has gotten my attention. Wish I knew someone who had one supposedly Schmidt and Bender Glass quality with Nightforce toughness for less that 1700 bucks. If That is true I know what my next scope will be.
Also the SWFA SS HD line is supposed to be outstanding glass it's at the 1k-1.4k Price point, along with the MK4's Weaver Tactical etc.
If you got the cash a S$B would serve very well.
It all comes down to what youíve got to spend.
"Let glorious acts more glorious acts inspire,
And catch from breast to breast the noble fire!
On valour's side the odds of combat lie,
The brave live glorious, or lamented die;" - Iliad, Book V