Optica6. 4.5-27 if I remember right. Just stopped tracking. Was on paper then wanted to zero it. Dialed up maybe 1 MOA and wasn't on paper. Walked out to the target and seen a bullet skid in the dirt way out in front of the target. Dialed 15 MOA up which got elevation back bet then it was also hitting very far right. Took it off at that point. I was done and didn't need the aggravation.