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G1 g2 g3 g4 ...g7 ????

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Unread 01-21-2014, 06:31 AM
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Join Date: Feb 2009
Posts: 379
G1 g2 g3 g4 ...g7 ????

ok sry about these questions but what are these ?? a 7mm rem mag 175 GRAİN SP bullet is it a g1 g2 ..g7 ?? whitch one ??
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Unread 01-21-2014, 08:31 AM
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Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 8,651
Re: G1 g2 g3 g4 ...g7 ????

The bullet has both a G1 and a G7 BC Rating. You can use either one in your ballistic app. The G7 forms have proven to be better with VLD style bullets at distances past 1000 yards.

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Unread 01-21-2014, 04:49 PM
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Join Date: Jan 2012
Location: Houston, Texas
Posts: 1,647
Re: G1 g2 g3 g4 ...g7 ????

Im not sure of the intricacies, but G(x) is a b.c. standard, that helps define the shape of your bullet for the mathamatical equation used to determine its trajectory. G1 is the oldest most used and i might be mistaken but developed around a musket ball. G7 is the newest and the most suited for modern bullets, as broz stated.

Last edited by Canadian Bushman; 01-21-2014 at 04:56 PM. Reason: Removed some stupid
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