I was just in the market for a rangefinder & found a nice Leupold at Gander Mtn. When I got it home, I was fooling around & checked it against two others I had available. The Leupold was 4 yards off (short) @ 100 yds. The others, Leica, & Nikon were exact out to 600+. I took the Leupold back to Gander & they started checking all the rest of the Leupolds in stock. They were all the same. We took several brands out in the parking lot, & everyone was +- 1/2 yard out to 400+. The leupolds were off 3-4 yards FOR EACH 100 YARDS OF RANGE. This made it 20-25 yards off @ 500 yards. The salesman was even stunned. I ended up returning it & getting another Nikon w/elevation calcuator. There are alot of choices. Do your own comparison, & you won't go wrong.