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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hypothetical BC question
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<blockquote data-quote="groper" data-source="post: 483790" data-attributes="member: 12550"><p>wikipedia - ... "BC is a function of mass, diameter, and <a href="http://en.wikipedia.org/wiki/Drag_coefficient" target="_blank">drag coefficient</a>." It is given by the <a href="http://en.wikipedia.org/wiki/Mass" target="_blank">mass</a> of the object divided by the <a href="http://en.wikipedia.org/wiki/Diameter" target="_blank">diameter</a> squared that it presents to the airflow divided by a dimensionless constant <em><strong>i</strong></em> that relates to the aerodynamics of its shape. Ballistic coefficient has units of lb/in² or kg/m². BCs for <a href="http://en.wikipedia.org/wiki/Bullet" target="_blank">bullets</a> are normally stated in lb/in² by their manufacturers without referring to this unit..."</p><p></p><p>or in other words,</p><p></p><p>BC = sectional density/form factor</p></blockquote><p></p>
[QUOTE="groper, post: 483790, member: 12550"] wikipedia - ... "BC is a function of mass, diameter, and [URL="http://en.wikipedia.org/wiki/Drag_coefficient"]drag coefficient[/URL]." It is given by the [URL="http://en.wikipedia.org/wiki/Mass"]mass[/URL] of the object divided by the [URL="http://en.wikipedia.org/wiki/Diameter"]diameter[/URL] squared that it presents to the airflow divided by a dimensionless constant [I][B]i[/B][/I] that relates to the aerodynamics of its shape. Ballistic coefficient has units of lb/in² or kg/m². BCs for [URL="http://en.wikipedia.org/wiki/Bullet"]bullets[/URL] are normally stated in lb/in² by their manufacturers without referring to this unit..." or in other words, BC = sectional density/form factor [/QUOTE]
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Rifles, Bullets, Barrels & Ballistics
Hypothetical BC question
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