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

Discussion in 'Long Range Hunting & Shooting' started by soundwaves, Jan 21, 2014.

  1. soundwaves

    soundwaves Well-Known Member

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    Feb 19, 2009
    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 ??
     
  2. Broz

    Broz Well-Known Member

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    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.

    Jeff
     

  3. Canadian Bushman

    Canadian Bushman Well-Known Member

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    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: Jan 21, 2014