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Hunting
Extreme Long Range Hunting & Shooting (ELR)
Hitting high @ 1351
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<blockquote data-quote="Broz" data-source="post: 829904" data-attributes="member: 7503"><p>Your problem is common. And one I am working on diligently. </p><p> </p><p>1: Lets start with a basic problem that has caused many grief. Actual scope tracking. Your scope may actually be moving your point of impact, lets say, 1.05 moa instead of 1.0 moa. This will appear to be a larger issue as distance increases. This is adjustable in shooter and Bryans AB program. Take your log book data and play with it to see if you can get on at several distances by adjusting this.</p><p> </p><p>2: Angle of target face and angle bullet is descending. What looks like 1 moa or even measures 1 moa through a reticle might not be when the angles are added to the equation. Retest at both distances using a 90* target surface like a steel target or a rock wall. To get accurate drop data.</p><p> </p><p>3: Up draft. Very common when we shoot long. We are usually shooting up. I find thermal and other winds are commonly present with up hill slopes. Do this test or use it to help with a first round dial up. To the best of your ability guess the wind going up where the target is. Look at the wind angle and how it will be contacting the angle of the descending incoming bullet. Many times this is a full value effect.</p><p>Enter the wind speed in your program as a full value cross wind and get the drift it will give in moa. Then use that number as to what you need to subtract from your dial up. Notice how little of an updraft it will take to lift you 1 or 2 moa.</p><p> </p><p>Hope this helps.</p><p> </p><p>Jeff</p></blockquote><p></p>
[QUOTE="Broz, post: 829904, member: 7503"] Your problem is common. And one I am working on diligently. 1: Lets start with a basic problem that has caused many grief. Actual scope tracking. Your scope may actually be moving your point of impact, lets say, 1.05 moa instead of 1.0 moa. This will appear to be a larger issue as distance increases. This is adjustable in shooter and Bryans AB program. Take your log book data and play with it to see if you can get on at several distances by adjusting this. 2: Angle of target face and angle bullet is descending. What looks like 1 moa or even measures 1 moa through a reticle might not be when the angles are added to the equation. Retest at both distances using a 90* target surface like a steel target or a rock wall. To get accurate drop data. 3: Up draft. Very common when we shoot long. We are usually shooting up. I find thermal and other winds are commonly present with up hill slopes. Do this test or use it to help with a first round dial up. To the best of your ability guess the wind going up where the target is. Look at the wind angle and how it will be contacting the angle of the descending incoming bullet. Many times this is a full value effect. Enter the wind speed in your program as a full value cross wind and get the drift it will give in moa. Then use that number as to what you need to subtract from your dial up. Notice how little of an updraft it will take to lift you 1 or 2 moa. Hope this helps. Jeff [/QUOTE]
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Hitting high @ 1351
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