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Long Range Hunting & Shooting
Altitude effect on custom dial scope
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<blockquote data-quote="Shane Lindsey" data-source="post: 2627913" data-attributes="member: 25831"><p>But, if you are half a beach ball off in your aimpoint, range estimation, stable rest, temperature, etc., you are now cutting into that margin of error even more. The goal is not to just get it enough. The goal is to put it exactly where you aim. (I am in the camp of not using pre-cut turrets either), but do what is most confident for your style of shooting. </p><p></p><p>The old rule before all the calculators and ballistic apps was to add or drop 1 MOA for every 20 degree temp change and add or drop 1 MOA for every 5000 feet climbed (I think, it has been awhile). This was with a 308 win, but you can play with a calculator and get a good idea what your rifle/load needs. Try to zero at your hunting location if possible, but may not get to the exact altitude based on your basecamp, but will be surely closer than home.</p><p></p><p>You could print a few from JBM with varying ranges of 2500 feet or so. Or get the free .$99 app and plug in the numbers once you actually get on site as they change from different positions/conditions.</p><p></p><p>Good luck on your hunt!</p></blockquote><p></p>
[QUOTE="Shane Lindsey, post: 2627913, member: 25831"] But, if you are half a beach ball off in your aimpoint, range estimation, stable rest, temperature, etc., you are now cutting into that margin of error even more. The goal is not to just get it enough. The goal is to put it exactly where you aim. (I am in the camp of not using pre-cut turrets either), but do what is most confident for your style of shooting. The old rule before all the calculators and ballistic apps was to add or drop 1 MOA for every 20 degree temp change and add or drop 1 MOA for every 5000 feet climbed (I think, it has been awhile). This was with a 308 win, but you can play with a calculator and get a good idea what your rifle/load needs. Try to zero at your hunting location if possible, but may not get to the exact altitude based on your basecamp, but will be surely closer than home. You could print a few from JBM with varying ranges of 2500 feet or so. Or get the free .$99 app and plug in the numbers once you actually get on site as they change from different positions/conditions. Good luck on your hunt! [/QUOTE]
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Altitude effect on custom dial scope
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