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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
calculating bc
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<blockquote data-quote="270 lefty" data-source="post: 454001" data-attributes="member: 16003"><p>Holy crap I should have paid more attention in my math classes!!</p><p>I'm just happy there are progremmes like exbal & bergers new program.</p><p>The interesting thing when I plug all the numbers from my Exbal print off witch is pretty darn close out to 1000yards and put into Bryans program I have to tweek the bc from .750 wildcat 169.5 to .770 to come out with the same drops time of flight ext. but the extra .20 bc adjustment puts every thing within 1/2 foot per second @1000 energy with in 1lbs time of flight nono second off I had goodgrouper do the load work up on Exbal but I used Bryans program on my last hunt adjusted every thing to 10 yard increments got on google earth to make sure elevation was correct. had to guess what temp would be but it paid off our group killed three antelope in 1 hour & 45 minuets fun but our trip was over to fast.</p></blockquote><p></p>
[QUOTE="270 lefty, post: 454001, member: 16003"] Holy crap I should have paid more attention in my math classes!! I'm just happy there are progremmes like exbal & bergers new program. The interesting thing when I plug all the numbers from my Exbal print off witch is pretty darn close out to 1000yards and put into Bryans program I have to tweek the bc from .750 wildcat 169.5 to .770 to come out with the same drops time of flight ext. but the extra .20 bc adjustment puts every thing within 1/2 foot per second @1000 energy with in 1lbs time of flight nono second off I had goodgrouper do the load work up on Exbal but I used Bryans program on my last hunt adjusted every thing to 10 yard increments got on google earth to make sure elevation was correct. had to guess what temp would be but it paid off our group killed three antelope in 1 hour & 45 minuets fun but our trip was over to fast. [/QUOTE]
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calculating bc
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