Did you bore sight after mounting? Check to be sure mounting is correct and screws are torqued correctly. I'd start out at 25 yards and only move one direction (up or to the right) at one time. Once you are on at 25 yards, then move back to 100 yards. You may have to try a different mounting system if you run out of scope adjustment or some shimming may be required. It's best not to run scope adjustments all the way out to their max.