I zeroed my 338 RUM on saturday for 200yds. Later I got looking at my Kestrel and it said when zeroed at 200 I need to come up .300. Scroll down the ballistics and it says I should be 1.5 inches low. Now what happens when I go to shoot at say 600yds. I dial up said amount. Will I be way high because I did not zero according to my Kestrel. Or will I be just fine. I am a little confused by this or have I missed some ting along the way. To be clear I put in all needed info. Put in zero 200yds.. then transfered it to the Kestrel. My bullets are striking right under the center line in the bulls eye. I mean lerally rubbing it. The group measured .675 center to center.. I was using it with my bipod and a roll of paper towel for the rear support. So any thoughts guys and what would you do.