I just went out to a firends and set up targets and water jugs....but. I checked the zero at 100 yrds first shot was low about 2 inches then the next three where all in 1 inch square.....first question Then I was pleased thinking it was just cold bore or clean gun.... Then I went out to 600 yrds and soon figured i should move up because I was not hitting the mark.... I moved to 250 yrds...and shot at paper target. I put a group in top right cornor aiming at the head of silloute.... Then aiming at center chest I put another group in the right shoulder area.... Why is it so off?!?! I used the ballistic cal. that is on the website Gseven.com one..... I put exact ajustments for range....but did not put wind and there was a tad wind but im more focused on the elevation right now, It was about 7 inches high. PLEASE HELP ME and THANKS!!