I've used several Sightrons, not the S6, but SI, SII's and a SIII and they were all nice, I'm sure the S6 would be awesome. That said I have a Athlon Midas Tac 6-24X50 Gen 1 and it has great glass. And, out of all the scopes I've used over the years, this one ranges better, and snaps in and out...