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Drag Function "G" number

 
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  #1  
Old 02-11-2006, 01:37 PM
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Join Date: Feb 2006
Location: Fulton, Missouri
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Drag Function \"G\" number

I'm a newbie to the sight and I'd appreciate it if someone could explain the "G" entry found on ballistics programs.

Thanks
Brent
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Old 02-11-2006, 04:52 PM
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Re: Drag Function \"G\" number

G refers to "drag model" AKA "drag deceleration". G1, G5, G7 are all drag models. Most manufactures use G1 for tests and info. In the real world, few bullets will actually fly according to the drag model G1. Some will use G5 or others G7, and some will not quite fit at all and a custom model will have to be used. There are 2 numbers needed that will calculate accurately the rate a bullet will decelerate (excluding apmospheric conditions) Its overall BC and its drag model. They are differant and yet so closley intertwined. It is a very in depth subject and hope others here share their understanding of this topic.

PS Welcome to the board! [img]/ubbthreads/images/graemlins/smile.gif[/img]
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Old 02-11-2006, 04:54 PM
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Re: Drag Function \"G\" number

Here is also a good read:

http://www.exteriorballistics.com/eb...ed/5th/221.cfm
__________________
Long range shooting is a process that ends with a result. Once you start to focus on the result (where the shot goes, how big the group is, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
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  #4  
Old 02-12-2006, 03:34 PM
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Location: Fulton, Missouri
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Re: Drag Function \"G\" number

Thanks for the help.

Brent
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