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Long Range Hunting & Shooting
How Much Does Barometric Pressure Change?
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<blockquote data-quote="Coyboy" data-source="post: 219827" data-attributes="member: 3733"><p>I have a problem with this, that may-be one of you can help me with?</p><p></p><p>I'm at roughly 1000 ft with WI muggy conditions. I just started loading for my 300Rum.</p><p></p><p>Berger 210 @ 2950fps, I will be hunting at 11,200-12,200 feet in four weeks, CO high country mulies. I'm printing a drop chart for home on JMB calculations.</p><p></p><p>I need to print a drop chart for altitude that is reasonably close, I will then shoot and adjust/confirm things when I reach the hunt area.</p><p></p><p>What or how should I enter the data to get the info close with the JMB basic balistic calculator? </p><p></p><p>Do I need to enable the "standard atmosphere at altitude?"</p><p></p><p>I assume I need to keep "corrected pressure" enabled?</p></blockquote><p></p>
[QUOTE="Coyboy, post: 219827, member: 3733"] I have a problem with this, that may-be one of you can help me with? I'm at roughly 1000 ft with WI muggy conditions. I just started loading for my 300Rum. Berger 210 @ 2950fps, I will be hunting at 11,200-12,200 feet in four weeks, CO high country mulies. I'm printing a drop chart for home on JMB calculations. I need to print a drop chart for altitude that is reasonably close, I will then shoot and adjust/confirm things when I reach the hunt area. What or how should I enter the data to get the info close with the JMB basic balistic calculator? Do I need to enable the "standard atmosphere at altitude?" I assume I need to keep "corrected pressure" enabled? [/QUOTE]
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How Much Does Barometric Pressure Change?
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