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Rifles, Reloading, Optics, Equipment
Reloading
B.C. IM CONFUSED ON THE 6.5 CALIBER
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<blockquote data-quote="Deleted member 103481" data-source="post: 1630425"><p>BC = sectional density/form factor</p><p></p><p>Sectional density is weight/ (diameter x diameter) </p><p></p><p>Form factor is drag coefficient/drag coefficient of a standard bullet </p><p></p><p>Because the diameter of the .308 bullet is wider it is a larger number that the grains are being divided by.</p><p></p><p>In your scenario we have the same form factor, so let's just talk about sectional density given your bullet weights... </p><p></p><p>[ATTACH=full]133172[/ATTACH] </p><p></p><p>The 6.5 will have a higher BC in this scenario because the sectional density is much higher.</p></blockquote><p></p>
[QUOTE="Deleted member 103481, post: 1630425"] BC = sectional density/form factor Sectional density is weight/ (diameter x diameter) Form factor is drag coefficient/drag coefficient of a standard bullet Because the diameter of the .308 bullet is wider it is a larger number that the grains are being divided by. In your scenario we have the same form factor, so let’s just talk about sectional density given your bullet weights... [ATTACH=full]133172[/ATTACH] The 6.5 will have a higher BC in this scenario because the sectional density is much higher. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
B.C. IM CONFUSED ON THE 6.5 CALIBER
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