I find using a higher power scope with an adjustable parallax to be very beneficial when working up an accurate load. Bought a 3 -9 hunting scope that was unusable on the range because the parallax was way way out of whack.

The crosshairs wandered about 4" at 100 yards with any head movement. I sent it back.

FYI Earnhard....it is the same scope you are using. Check the scope parallax. kl