I'm believer in sightron. I've got a handful of them. I've got two 6.5-20x50 big skys ( which is not made anymore) 60 moa of windage and elevation. They are just shy of 18 ounces & has japanese glass that's impressive. They track & repeat very well. It's hard to find them but they fit the bill nicely for a lightweight long-range scope. The target turrets could have been a little larger on them.Sightron now makes an illuminated FFP version of their 4-20 STAC, catalog lists it as 25.8 oz