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Hunting
Long Range Hunting & Shooting
Altitude effect on custom dial scope
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<blockquote data-quote="orifdoc" data-source="post: 2628032" data-attributes="member: 115070"><p>Using a simple ballistic app for a 180gr .308 Accubond at 3000 fps, 29.92 atmosphere, 0% RH, and 59 degrees with a 250 yard zero I get 56.2" drop and 51.9" drop at 600 yards for 2000' and 8000'. For 1000 yards it's 221.7" vs 253.4".</p><p></p><p>5" difference at 600. 32" difference at 1000.</p><p></p><p>Like others, I leave the original dial and make a range card for the elevation and predicted temperature of my hunt. If temp or humidity change, I make a mental note of it each morning. YMMV.</p><p></p><p>Most likely you'll shoot that elk at 200 yards. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="orifdoc, post: 2628032, member: 115070"] Using a simple ballistic app for a 180gr .308 Accubond at 3000 fps, 29.92 atmosphere, 0% RH, and 59 degrees with a 250 yard zero I get 56.2” drop and 51.9” drop at 600 yards for 2000’ and 8000’. For 1000 yards it’s 221.7” vs 253.4”. 5” difference at 600. 32” difference at 1000. Like others, I leave the original dial and make a range card for the elevation and predicted temperature of my hunt. If temp or humidity change, I make a mental note of it each morning. YMMV. Most likely you’ll shoot that elk at 200 yards. :) [/QUOTE]
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Altitude effect on custom dial scope
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