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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Drag Function question.
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<blockquote data-quote="Blaine Fields" data-source="post: 32239" data-attributes="member: 183"><p><BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR> Brent, I really don't know about the algorythims. The G1 funtion is the one the Infinity uses, BUT the program can use the different BCs at different velocities, most programs cannot. <HR></BLOCKQUOTE></p><p></p><p>The reason that the Infinity uses increasingly smaller BCs is to correct the G1 drag function output. This function will produce drag results that are much lower than actual, hence the need to drop the BC along the trajectory. The fact that Sierra has to patch the trajectory in this way should be demonstration enough that the G1 drag function used by itself is not a good fit for small caliber bullets.</p><p></p><p>But, as the guys have said, better drag functions use smaller BCs and that is a marketing problem.</p></blockquote><p></p>
[QUOTE="Blaine Fields, post: 32239, member: 183"] <BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR> Brent, I really don't know about the algorythims. The G1 funtion is the one the Infinity uses, BUT the program can use the different BCs at different velocities, most programs cannot. <HR></BLOCKQUOTE> The reason that the Infinity uses increasingly smaller BCs is to correct the G1 drag function output. This function will produce drag results that are much lower than actual, hence the need to drop the BC along the trajectory. The fact that Sierra has to patch the trajectory in this way should be demonstration enough that the G1 drag function used by itself is not a good fit for small caliber bullets. But, as the guys have said, better drag functions use smaller BCs and that is a marketing problem. [/QUOTE]
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Drag Function question.
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