I ran an elaborate test of scopes in the dark about a month ago and posted it on SavageShooters dot com. Used a 10 year old Leupold 30 m/m and a new Nikon Buckmaster, dismounted them and stuck them through a cardboard box to make a big binocular so I could go back and forth, looked at newspaper headlines, license plates and car colors under full moon and streetlights. Surprisingly, the Nikon won on reading letters, but just barely, and I think the Leupold was a bit better with colors, but in most tests they were the same. I also like the small Leupolds. Technically, if you want the last tenth of one percent, the best glass and the biggest front bell will be the ticket, but you pay with weight and bulk, not to mention dollars.