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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does "anyone" ever take Sectional Density into consideration!!
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<blockquote data-quote="FURMAN" data-source="post: 1539344" data-attributes="member: 26535"><p>You are kidding right? Sectional density is weight divided by diameter. A 220 grain 30 cal bullet will have an sd of .331. Ballistic coefficient is a coefficient used to calculate a bullets resistance to slowing down in air. One of the 220 Woodleighs has a bc of .359. The 220 ELD has a bc of 650. Sectional density is an important consideration but is accounted for in bc. BC is what is really important when determining external ballistics for long range hunting. Terminal performance is a completely different subject.</p></blockquote><p></p>
[QUOTE="FURMAN, post: 1539344, member: 26535"] You are kidding right? Sectional density is weight divided by diameter. A 220 grain 30 cal bullet will have an sd of .331. Ballistic coefficient is a coefficient used to calculate a bullets resistance to slowing down in air. One of the 220 Woodleighs has a bc of .359. The 220 ELD has a bc of 650. Sectional density is an important consideration but is accounted for in bc. BC is what is really important when determining external ballistics for long range hunting. Terminal performance is a completely different subject. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does "anyone" ever take Sectional Density into consideration!!
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