I've had 2 of these scopes for about 3 years on a 243win and a 7mm rem mag. After over 900 rounds and several elk hunts with the 7mm it still tracks perfectly from 100 to 1400 yards. Unbeatable scope in this price range.
I have been absolutely amazed with the scope especially the glass. The tracking is amazing as well. This is one of those rare instances where I truly believe you get more than what you pay for. I think that the SIII Series is The best kept secret in the optics world.
Great scope. Optics are clear (eq. my Leupold for me). The eye focus is easy to adjust. The turrets have nice and precises clicks, always returning to zero. Love the MOA reticule. I get a 1400 meters range (1500 yards) with it. Would only have a zero stop and a one MOA graduation. A nice product