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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
G1... G7... ??
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<blockquote data-quote="Mike6158" data-source="post: 336829" data-attributes="member: 1039"><p>I have been using LoadBase (cool program but way over my head in many places. I plan to fix that.) and I just received a couple of boxes of Berger 168 gr. VLD hunting bullets (7 mag were back ordered). I also use a little iPhone app for ballistics as well as LoadBase on a pocket PC (best way to go imho). All of them have references and data entry points for G1 - G7, etc</p><p></p><p>For instance:</p><p></p><p>The bullet box says:</p><p></p><p>G1 BC = .473</p><p>G7 BC = .242</p><p></p><p>BC I understand... G1 and G7 I'm not so sure. I assume that it's related to muzzle velocity and some other velocity downrange. Since this appears to be a standardized measurement I'm guessing it's yardage (or meters)? Not velocity though for each load there will be an equivalent velocity for an equivalent point in the trajectory. </p><p></p><p>Just curious...</p></blockquote><p></p>
[QUOTE="Mike6158, post: 336829, member: 1039"] I have been using LoadBase (cool program but way over my head in many places. I plan to fix that.) and I just received a couple of boxes of Berger 168 gr. VLD hunting bullets (7 mag were back ordered). I also use a little iPhone app for ballistics as well as LoadBase on a pocket PC (best way to go imho). All of them have references and data entry points for G1 - G7, etc For instance: The bullet box says: G1 BC = .473 G7 BC = .242 BC I understand... G1 and G7 I'm not so sure. I assume that it's related to muzzle velocity and some other velocity downrange. Since this appears to be a standardized measurement I'm guessing it's yardage (or meters)? Not velocity though for each load there will be an equivalent velocity for an equivalent point in the trajectory. Just curious... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
G1... G7... ??
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