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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Weight a factor of BC?
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<blockquote data-quote="nkyshooter" data-source="post: 2104288" data-attributes="member: 83787"><p>100% correct ... the "size and form" are what make up the "<em>Diameter(projectile) ^2 *</em> <em>i(coefficient of form)"</em> in the denominator of the equation.</p><p></p><p>This tells me that this is why the mono (all copper) bullets - which are of lesser density - must necessarily be made to minimize the product of the square of the diameter and the coefficient of form ... which means they must lengthen significantly to be equal in weight to jacketed lead ... which means higher twists required to drive bullets of same weight as compared to a jacketed lead projectile in the same diameter.</p></blockquote><p></p>
[QUOTE="nkyshooter, post: 2104288, member: 83787"] 100% correct ... the "size and form" are what make up the "[I]Diameter(projectile) ^2 *[/I] [I]i(coefficient of form)"[/I] in the denominator of the equation. This tells me that this is why the mono (all copper) bullets - which are of lesser density - must necessarily be made to minimize the product of the square of the diameter and the coefficient of form ... which means they must lengthen significantly to be equal in weight to jacketed lead ... which means higher twists required to drive bullets of same weight as compared to a jacketed lead projectile in the same diameter. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Weight a factor of BC?
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