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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Ballistic calculator inputs
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<blockquote data-quote="Mikecr" data-source="post: 2612984" data-attributes="member: 1521"><p>Speer lists the BC of the 100gr bullet at .255</p><p>The problem is that this is useless information, as they failed to declare standard atmosphere, velocity, and drag standard.</p><p>A telltale that the bullet maker has no actual clue about this stuff.</p><p></p><p>If it's assumed G1 .255, under ICAO SL std. conditions, then we still need to know the velocity in basis to lookup G6 drag coefficient -for velocity. So there is too much information missing.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2612984, member: 1521"] Speer lists the BC of the 100gr bullet at .255 The problem is that this is useless information, as they failed to declare standard atmosphere, velocity, and drag standard. A telltale that the bullet maker has no actual clue about this stuff. If it's assumed G1 .255, under ICAO SL std. conditions, then we still need to know the velocity in basis to lookup G6 drag coefficient -for velocity. So there is too much information missing. [/QUOTE]
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Ballistic calculator inputs
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