greenejc
Well-Known Member
vertical impact is not really effected by wind unless its blowing to or from you and only a very little then.Whoops
vertical impact is not really effected by wind unless its blowing to or from you and only a very little then.Whoops
It could easily be me for sureIn order of likelyhood:
1) Trigger finger placement- I've done experiments even at 300 yards that cause lots of horizontal dispersion just on finger placement on the trigger.
2) Lateral cheek weld pressure On the stock
3) Sight picture issue- parrallax, canting rifle etc.
4) scope (though not likely since it's across multiple platforms) I've tested some scopes on a heavy tracking rig Where the reticles would actually move in a "C" shaped pattern. That would vary slightly to left or right then come back to center. I've only seen it once but if I didn't have multiple witnesses I would have never believed it if I had heard about it. Again not likely since you're seeing the same across multiple rifles.
Did you change parallax as you changed distance? Did you change powers as you changed distances? Put up range flags so you can see changes in wind at intermediate and final distances, too.After placing the bubble on one of the rifles and just bedding down with it, I can see where it could easily just be me canting it slightly but wouldn't that be a non issue if I'm using the turrets ? I checked with a redneck plumb bob and it seems perfect for the scope mount
Put up range flags and put it on paper at 400 and 500. Also, 6" at 600 is less than 1 moa. The range flags will tell you the wind at midpoint, which may be the problem. The paper will tell you actual impact at distance. If it were trigger pull or stock weld you should not see a return to zero in windage at 1,000 yards. The windage error would be extended. I'm thinking that there are wind shifts between you and your target.Ya, I'm feeling confident with the parallex. Wind/mirage where I've been shooting 1000 could definitely be what's bringing it back but it's just weird that I see it with multiple rifles. A couple are zeroed at 100 the rest at 200. Doesn't seem to matter. I haven't shot any paper in between 2 and 600 yards but there's some pretty small ( maybe 3"?) steel targets at 3 and 4hundred that I'll plink and never seem to miss while I'm dialing out
Good thoughts, too.Agree with greenejc. You are shooting at a fairly flat range where wind changes are inevitable. Hot air balloonists change direction by adjusting height above ground where 180 degree wind shifts are common. Ground effects , Coriolis effects and spin drift can add to wind changes to affect bullet travel. Competition shooters often put range flags every 200 yards or so to see the wind changes downrange. I did it shooting smallbore competiton with flags every 20 yards out to the 100 yard targets. regarding scopes, make sure the vertical reticle points to the centerline of the bore. When in shooting positiion move the eye left and right to make sure there is no shift in point of aim. If there is a shift in POA then the scope is out of parallax adjustment. Change the parallax adjustment until the shift is minimal or hopefully zero. Just some thoughts.
Check barrel is not touching the stock. When barrel heats it may touch the stock.this sending the bullets off course.This has been driving me nuts. I do a lot of load work up for various cartridges and rifles and everything I shoot starts to walk over to the left from where my Kessler or Hornady app tells me it should out to about 800 yards and then comes back to center about 1000. Wth? I've ordered a couple of those scope levels to try but I'm not feeling confident. It varies with different cartridges and is usually about 2-6" at 600 yards. It's definitely repeatable and I usually just aim to the right a little. Bergers and Hornady and hammers, don't matter. What am I doing wrong?
/\ /\ #4...I had a buddy that was using an older Mark 4 Leupold with the wire reticle that did the exact same thing.In order of likelyhood:
1) Trigger finger placement- I've done experiments even at 300 yards that cause lots of horizontal dispersion just on finger placement on the trigger.
2) Lateral cheek weld pressure On the stock
3) Sight picture issue- parrallax, canting rifle etc.
4) scope (though not likely since it's across multiple platforms) I've tested some scopes on a heavy tracking rig Where the reticles would actually move in a "C" shaped pattern. That would vary slightly to left or right then come back to center. I've only seen it once but if I didn't have multiple witnesses I would have never believed it if I had heard about it. Again not likely since you're seeing the same across multiple rifles.