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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help with BC calculation
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<blockquote data-quote="milanuk" data-source="post: 35213" data-attributes="member: 376"><p>That's just it... it *doesn't* work out, because a G7 B.C. of ~0.5 translates to about a 0.8 or 0.9 G1 B.C. which seems entirely unrealistic. Yes a G5 or G7 B.C. is technically more accurate, but we are talking small amounts here. Figuring the drop for a 142gr SMK out of my 6.5-08 w/ a G1 B.C. of .595 as compared to a temperature/altitude/humidity corrected G5 B.C. of something like .409 (don't have it right in front of me so I may be off there) results in something like less than 1/2 MOA difference @ 600yds.</p><p></p><p>Jerry,</p><p></p><p>Another thing to maybe check would be to try a different box of the same lot of bullets, and a different box of a different lot of the SSTs. If the results are consistent, and we can't come up w/ some other explanation... man I hope Hornady is stocked up on these puppies, cuz once the LR competition shooters find out about this... <img src="http://images/icons/grin.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Monte</p></blockquote><p></p>
[QUOTE="milanuk, post: 35213, member: 376"] That's just it... it *doesn't* work out, because a G7 B.C. of ~0.5 translates to about a 0.8 or 0.9 G1 B.C. which seems entirely unrealistic. Yes a G5 or G7 B.C. is technically more accurate, but we are talking small amounts here. Figuring the drop for a 142gr SMK out of my 6.5-08 w/ a G1 B.C. of .595 as compared to a temperature/altitude/humidity corrected G5 B.C. of something like .409 (don't have it right in front of me so I may be off there) results in something like less than 1/2 MOA difference @ 600yds. Jerry, Another thing to maybe check would be to try a different box of the same lot of bullets, and a different box of a different lot of the SSTs. If the results are consistent, and we can't come up w/ some other explanation... man I hope Hornady is stocked up on these puppies, cuz once the LR competition shooters find out about this... [img]images/icons/grin.gif[/img] Monte [/QUOTE]
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Help with BC calculation
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