I recently purchased a new Model 16 TH XP in 260 remington. My first trip to the range for barrel break-in, I couldn't get it on paper until I shot at 20 yards. At that point it was hitting about 6 inches low. I was able to raise POI about three inches, but then it seemed to stop moving up. I stopped for the day and took it home. I made sure everything was tight, and then took it in to be bore sighted at a local shop. The guy there confirmed everything was tight, and bore sighted it. I watched him adjust the scope up quite a bit. I took it back out this morning, and once again, I'm not on paper at 100 yards. The scope is the Nikon BDC 3-9X40. Sound like a bad scope?