the opinion of Longshot seems to agree with the people that are quite knowledgable in optics. have been reasearching Sightron scopes for a while and have heard nothing but great things about them. understand that Sightron has 3 different grades of scopes. the S3 is their best line and is compared to Nightforce. the S1 and S2 lines are certainly great values for the money, but aren't a Mark4 either. the S3 on the other hand is a much better scope. some rate the optics in the S3's sightly better than the Nightforce. the optical guru on optics talk said the S3's were better than all of the Lupy's except for the VX-7.
i do know if you spend the same amount of money for a scope, the Sightron would be a better scope than the Leupold.
Dave I think you just gave me a hernia with that comment about the s3s as being better than mk4s, now thats **** funny, almost classic. As far as the O-guru on O-talk, if you want a real joke read their reviews, its based on what pays out the most me thinks. I actually wasted my time on this, amazing.