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Rifles, Reloading, Optics, Equipment
Reloading
What is ogive?
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<blockquote data-quote="Mikecr" data-source="post: 1698258" data-attributes="member: 1521"><p>It doesn't help. Ogive datum (as a meaningful standard) is still undefined. There is a lot of math involved in determining a real 'land contact' point, and while ogives vary in radius, and land angle vary more & more with every shot down the tube.</p><p>What you measure with BTO provides nothing regarding the <u>individual</u> drag sections. There is a lot of math involved in calculating drag from each section, if carefully determined. Then there is the measure & math behind the ogive itself, including meplat diameter. And aerodynamics science does not rely on calculations alone, but also on validating testing.</p><p></p><p>So there are no credible actions to be taken from a mere BTO measure.</p><p>It's silly</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1698258, member: 1521"] It doesn't help. Ogive datum (as a meaningful standard) is still undefined. There is a lot of math involved in determining a real 'land contact' point, and while ogives vary in radius, and land angle vary more & more with every shot down the tube. What you measure with BTO provides nothing regarding the [U]individual[/U] drag sections. There is a lot of math involved in calculating drag from each section, if carefully determined. Then there is the measure & math behind the ogive itself, including meplat diameter. And aerodynamics science does not rely on calculations alone, but also on validating testing. So there are no credible actions to be taken from a mere BTO measure. It's silly [/QUOTE]
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What is ogive?
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