I flat out love my 5-20! It rides my 338lm & has been nothing but confidence-inspiring from 90f doping sessions last summer to -30f mornings looking for canines. It's been carried through blizzards, bathed in elk & deer blood, and racked up close to 100 hiking miles in the eberlestock
this fall. I don't have a single bad thing to say about it (I don't mind the weight at all- especially since it's on a 338). Where it shines best for me is the glass quality. I've managed to mil-range elk to within 17 yards at longish ranges (I figured 825, the zeiss said 842). Having great glass, FFP, and a reticle that makes ranging easier makes it by far my favorite scope. Now take me with a grain of salt- I don't own any S$B's or NF, just a few loopies, a conquest, and a few low to midrange vortexes.
Btw- on a 20moa rail, on the 388 I can dial out to well over 2k (unverified) and should have holds out close to 3k