Well I just bought a new Vortex Diamondback 20-60x85 angled primarily for going back to long range (600 and 1000) yard competitive shooting with my Tikka 30-06 or Browning 300 WM. I bought it direct from Vortex at their store in Barneveld where I had the opportunity to compare the different models. Now let me preface this with the acknowledgement that my vision has deteriorated over the years. The net result being that I could see no real significant difference between the Diamondback, the Razor or the Viper. Looking out the window at the showroom I sighted in at the horizon which is about a mile or more away. There is a farmyard that one cannot even hope to see even if you know where it is at an estimated magnetic azimuth between 190 and 200 degrees from the showroom. Once found and zoomed in and focused I could see people walking around the farmyard and traffic on the road in front of the farm. With these tired old eyes I figured that if the scope was this good, it was mine. So for a retail price of $599.99 instead of over $1000 for either the Viper or Razor it fit my needs, and I pretty much would fit the long range needs of most shooters. At 60.9 ounces it is not lightweight, add the weight of a decent tripod and one is going to be packing some 7 pounds. OK on the range but don't know if I would want to be packing that out in the mountains on an Elk hunt. Your thoughts?