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Hunting
Long Range Hunting & Shooting
Calculating range adjustment for ranges you have not shot?
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<blockquote data-quote="dfanonymous" data-source="post: 1921760" data-attributes="member: 97050"><p>I want to know why BC is going to matter at borderline PBR range. Unless you are shooting a .22lr, BC doesn't take a huge or at all effect at these ranges. Your BC is going to matter at transonic/subsonic range. While the bullet is going supersonic, you need to true the muzzle velocity to align the software. </p><p></p><p>As far as BC is concerned, the advertised BC are averages. There is a dead nuts on BC value per mach change. So in theory, say you G7 value is .250, people can give you .255, .245 .242 and all these BC's would be correct depending MV decay obviously, it would be at a lower mach, and thus the BC would be on the lower side of the spectrum, and it still won't matter more than MV at 600y and in because that decay isn't significant enough. This is why applied ballistics makes you true MV around transonic.</p></blockquote><p></p>
[QUOTE="dfanonymous, post: 1921760, member: 97050"] I want to know why BC is going to matter at borderline PBR range. Unless you are shooting a .22lr, BC doesn’t take a huge or at all effect at these ranges. Your BC is going to matter at transonic/subsonic range. While the bullet is going supersonic, you need to true the muzzle velocity to align the software. As far as BC is concerned, the advertised BC are averages. There is a dead nuts on BC value per mach change. So in theory, say you G7 value is .250, people can give you .255, .245 .242 and all these BC’s would be correct depending MV decay obviously, it would be at a lower mach, and thus the BC would be on the lower side of the spectrum, and it still won’t matter more than MV at 600y and in because that decay isn’t significant enough. This is why applied ballistics makes you true MV around transonic. [/QUOTE]
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Calculating range adjustment for ranges you have not shot?
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