I bought 2 S-TACs from Optics Planet when they were on sale ($302 for the 4-20 and $245 for the 3-16), nice glass, I haven't used the 3-16. I put the 4-20 on a Ruger Target/Varmint in 6.5 Creedmoor and sighted it in. Shots 6,7 and 8 went into the same hole. I then took the rifle to shooting school and dialed out to 900 yards hitting smaller than usual gongs. I did run out of elevation at 1000, I needed 31.3 MOA and I only had 30 MOA , if the scope had zero stop it would have been no problem. I dialed 30 MOA, then Kentuckied at 1000 yards and hit. I shot in the pouring rain for two days straight and cleaned my scope lenses by pouring water on them. Always returned to 100 yard zero. It was a bit dicey remembering where zero was. Glass is clear, for $300, you can't beat it!
