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Rifles, Reloading, Optics, Equipment
Reloading
8MM Remington Mag Questions
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<blockquote data-quote="Edd" data-source="post: 654879" data-attributes="member: 30592"><p>Sounds like you are trying to separate weight and sectional density. You can't do that.</p><p> </p><p></p><p>The bullet diameter is .323". The sectional density depends on how much it weighs. Here's the math.</p><p></p><p>SD = (bullet wt in grains X .000143) ÷ (bullet diameter X bullet diameter)</p><p></p><p>An 8mm example</p><p></p><p>SD = (200 x .000143) ÷ (.323 x .323)</p><p></p><p>SD = .0286 ÷ .1043</p><p></p><p>SD = .274</p><p></p><p>Or you could just use this. </p><p></p><p><a href="http://www.beartoothbullets.com/rescources/calculators/php/density.htm" target="_blank">Beartooth Bullets > Ballistician's Corner > Sectional Density</a></p></blockquote><p></p>
[QUOTE="Edd, post: 654879, member: 30592"] Sounds like you are trying to separate weight and sectional density. You can't do that. The bullet diameter is .323". The sectional density depends on how much it weighs. Here's the math. SD = (bullet wt in grains X .000143) ÷ (bullet diameter X bullet diameter) An 8mm example SD = (200 x .000143) ÷ (.323 x .323) SD = .0286 ÷ .1043 SD = .274 Or you could just use this. [url=http://www.beartoothbullets.com/rescources/calculators/php/density.htm]Beartooth Bullets > Ballistician's Corner > Sectional Density[/url] [/QUOTE]
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8MM Remington Mag Questions
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