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Hunting
Long Range Hunting & Shooting
Do you need to rezero a scope if you significantly change elevation?
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<blockquote data-quote="goodgrouper" data-source="post: 179810" data-attributes="member: 2852"><p>Yep. It doesn't make a bit of difference. The internal ballistics stay the same. I have chronoed the same gun at 5000' and 10000' and the sweet spot stayed the same, gave the same accuracy, same speeds, same deviation.</p><p></p><p>Some short range benchrest shooters pay special attention to humidity and density altitude in relation to loads but that is mosltly because we are loading at the range and our powder sits in a bottle all day long in the great outdoors. The lower Oxygen levels at higher elevations do not factor in. Actually, oxygen levels anywhere don't factor in as powder will burn without oxygen.</p></blockquote><p></p>
[QUOTE="goodgrouper, post: 179810, member: 2852"] Yep. It doesn't make a bit of difference. The internal ballistics stay the same. I have chronoed the same gun at 5000' and 10000' and the sweet spot stayed the same, gave the same accuracy, same speeds, same deviation. Some short range benchrest shooters pay special attention to humidity and density altitude in relation to loads but that is mosltly because we are loading at the range and our powder sits in a bottle all day long in the great outdoors. The lower Oxygen levels at higher elevations do not factor in. Actually, oxygen levels anywhere don't factor in as powder will burn without oxygen. [/QUOTE]
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Do you need to rezero a scope if you significantly change elevation?
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