If you look at the specs you'll see that like a lot of companies Sightron offers from entry level to much higher. Specifically the S11 Big Sky models and the S111 have much upgraded glass and features. Basically they are the same line, the big sky with 1 inch tube the S111 30mm.
I only have experience with my S11 Big Sky 6.5-20x50 LRMOA which is mounted on a 223 target rifle. The clarity is outstanding although not completely to the edges but its a huge sweet spot and its sweet. I understand the 111s fair better here. The erector system does not disappoint. I was looking for advice for decent glass that wouldn't break the bank on my first bench rifle and this scope was recommended to me as a foot in the door at well under a grand from a fellow who shoots a lot of 1000yd competitively and on the world stage in the past. I'm quite happy with it.
