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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
G1 or G7
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<blockquote data-quote="BryanLitz" data-source="post: 638406" data-attributes="member: 7848"><p>In addition to Kevins response, you can refer to this article:</p><p><a href="http://02b0516.netsolhost.com/blog1/2009/06/17/a-better-ballistic-coefficient/" target="_blank">Berger Bulletin » A Better Ballistic Coefficient</a></p><p></p><p>And if you want the full story:</p><p><a href="http://www.appliedballisticsllc.com/Book.htm" target="_blank">Book</a></p><p></p><p>The book explains G1 vs G7 in detail, as well as lists the measured G1 and G7 BC's for 225+ common long range bullets.</p><p></p><p>My 'short summary' is: G7 BC's have less variation over long range. A G1 BC may vary over 20% from muzzle to a long range target which makes it very difficult to predict a trajectory that's accurate all the way. A G7 BC typically has less than 5% variation over long range. The reason is because the G7 standard is a better fit for modern bullets. So it's naturally more predictive over long range than the less representative G1 standard.</p><p></p><p>-Bryan</p></blockquote><p></p>
[QUOTE="BryanLitz, post: 638406, member: 7848"] In addition to Kevins response, you can refer to this article: [url=http://02b0516.netsolhost.com/blog1/2009/06/17/a-better-ballistic-coefficient/]Berger Bulletin » A Better Ballistic Coefficient[/url] And if you want the full story: [url=http://www.appliedballisticsllc.com/Book.htm]Book[/url] The book explains G1 vs G7 in detail, as well as lists the measured G1 and G7 BC's for 225+ common long range bullets. My 'short summary' is: G7 BC's have less variation over long range. A G1 BC may vary over 20% from muzzle to a long range target which makes it very difficult to predict a trajectory that's accurate all the way. A G7 BC typically has less than 5% variation over long range. The reason is because the G7 standard is a better fit for modern bullets. So it's naturally more predictive over long range than the less representative G1 standard. -Bryan [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
G1 or G7
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