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<blockquote data-quote="kraigwy" data-source="post: 676688" data-attributes="member: 12597"><p>I don't know what you are shooting, but my Model 70 in 270 Win with 150 gr Berger's drops additional 9+ inches between sea level and 10,000 feet. </p><p> </p><p>Its about the Air Pressure. the normal air pressure for Sea level is 29.92 where as at 10,000 feet its 20.98</p><p> </p><p>You can get a chart by goggling the International Civil Aviation Organization. </p><p> </p><p>Also go to the the Berger Bullet web sight and down load their ballistic program (free) put the number in. Play with the pressure part and see what it does for your bullet.</p><p> </p><p>I live at 4500 feet and hunt at 10,000. It kicks my butt but I'm old. (65 tomorrow) and lazy.</p><p> </p><p>I use horses to do the heavy lifting. I can ride to the top of a ridge and peek over and shoot if I have to. If I had to walk up the ridge what ever critter I'm hunting would die of old age before I caught my breath.</p></blockquote><p></p>
[QUOTE="kraigwy, post: 676688, member: 12597"] I don't know what you are shooting, but my Model 70 in 270 Win with 150 gr Berger's drops additional 9+ inches between sea level and 10,000 feet. Its about the Air Pressure. the normal air pressure for Sea level is 29.92 where as at 10,000 feet its 20.98 You can get a chart by goggling the International Civil Aviation Organization. Also go to the the Berger Bullet web sight and down load their ballistic program (free) put the number in. Play with the pressure part and see what it does for your bullet. I live at 4500 feet and hunt at 10,000. It kicks my butt but I'm old. (65 tomorrow) and lazy. I use horses to do the heavy lifting. I can ride to the top of a ridge and peek over and shoot if I have to. If I had to walk up the ridge what ever critter I'm hunting would die of old age before I caught my breath. [/QUOTE]
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