I have the 8-32 x 56 SIII. Tracking and clarity is awesome. Now I have heard from some others not to get the 10-50 because it is a 2 pc scope???. Don't know what they mean by that or if it is even true. All I can do is vouch for Sightron being very nice scopes and that they track very well. Repeatable tracking time after time after time.