We were checking out some elk this evening and they were in my range but the guys I was with don't have the range so we put the sneak on them and the weather was awesome for seeing the air movement. It was a drizzle/snow and I could see the air rolling over a ridge and from the first spot I could see that a shot from that position would have gone through a huge harsh down draft but on our way up we got to a place where it looked like the bullet trajectory would have been under the down draft and only had to contend with a cross wind. Any way the guy with the first shot FAILED to drop the lead cow so the we didn't have a shot on any of the 6 brow tine bulls, I really wish I would have shot from position 2 cause it was 836yrds to the largest 6 point standing there begging me to shoot, heck we stood there getting our act together for five minutes and he stood there, should have got greedy and shot! So I was thinking about shooting through that down draft and it's affect on ballistics of that bullet, I was wondering if say the cross wind looked like 10mph cross but there is an equal looking down draft could you add that cross wind value to the elevation adjustment, wouldn't the wind deflect the bullet down at the same rate as it would with an equal cross wind? Any thoughts on down drafts or up draft?