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Hunting
Long Range Hunting & Shooting
Re-zeroing at altitude
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<blockquote data-quote="lancetkenyon" data-source="post: 1720129" data-attributes="member: 68875"><p>I use Shooter. I always enter my zero atmospheric information, usually 28.09-28.25 baro (not just elevation which is about 1700'AMSL), between 60-90°F. 200 yard zero on all my rifles, which increases the chances for more error vs. 100 yard zero.</p><p>With that being said, with using a ballistic calculator, I have made first round hits at elevations between 2000'-9500'+ and between 40 to 1500+ yards by simply entering correct conditions.</p><p>I would bet, with accurate inputs during zero @ 1000', if you go up to 7000', it should correct to show approximately a .1-.2" high impact. But, temps make a difference too. If you zero @ 80°, but are hunting @ 30°, it will bring your zero back down. Dense air, being from elevation or temps, is still dense air. Now if you zero @ 1000' & 30°, then go shoot at 8000' & 80°, you will see a bigger change in drops at distance, being much flatter trajectory.</p></blockquote><p></p>
[QUOTE="lancetkenyon, post: 1720129, member: 68875"] I use Shooter. I always enter my zero atmospheric information, usually 28.09-28.25 baro (not just elevation which is about 1700'AMSL), between 60-90°F. 200 yard zero on all my rifles, which increases the chances for more error vs. 100 yard zero. With that being said, with using a ballistic calculator, I have made first round hits at elevations between 2000'-9500'+ and between 40 to 1500+ yards by simply entering correct conditions. I would bet, with accurate inputs during zero @ 1000', if you go up to 7000', it should correct to show approximately a .1-.2" high impact. But, temps make a difference too. If you zero @ 80°, but are hunting @ 30°, it will bring your zero back down. Dense air, being from elevation or temps, is still dense air. Now if you zero @ 1000' & 30°, then go shoot at 8000' & 80°, you will see a bigger change in drops at distance, being much flatter trajectory. [/QUOTE]
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Re-zeroing at altitude
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