I have noticed something strange the last two range sessions. Been tweeking an Armalite AR 30 338 lapua. Settled on 91 g H1000/300 Berger Hybird. Loaded to fit mag at 3.72 (mag lengh is 3.75) Anyway, the last two days out I have had a breeze from 3:00. Today I confermed my zero at 300, and shot 2 shots at 400 - 800 yards, every 100 yards...just to conferm drops. I was dead on at 300 for windage. 400 not to bad for windage, but as I got out to 800 I was hitting 3/4 to 1MOA right..with a R-L wind....maybe 3-5MPH. I should have been left 1MOA. I could see the slight mirage off of the snow....definatly R-L, but I just kept going further and further right. I went back and shot 300 after and was again dead on for windage. I am shooting almost due east at the 49th paralell for anyone who has the abilaty to figure coriolis...I don't. I can't imagin that any of that stuff (spin drift and coriolis) would have any noticable affect at only 800. This is my range...I shoot it all the time...never seen anything like it before. Anyway, my drops are also off, unless my chrono is way off....I am needing to tweek the speed up and the BC up. I am having to add 75 FPS and put the G1 BC on the I6 program to .850. Gun is shooting good, but NOTHING is going according to plan. Has anyone notice that the 300 grain Bergers DO NOT pay any attention to the laws of phisics??? EDIT......I was just kicking back doing nothing gun related and had an idea....scope/rifle cant. Now, I mounted the scope and am usually pretty carefull. As far as the shooting, I am shooting off of a Harris bipod that tilts...but I cant imagin I am that far off. I am thinking that impacts would also be low, not high.