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About LinkBacksNo G7's aren't specific to boattails, just that the standard G7 projectile is a boat tail, so a G7 BC is a better fit to boat tails than the G1 BC.
There are other ones as well
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The resulting drag curve models for several standard projectile shapes or types are referred to as:
G1 or Ingalls (flatbase with 2 caliber (blunt) nose ogive - by far the most popular)[11]
G2 (Aberdeen J projectile)
G5 (short 7.5° boat-tail, 6.19 calibers long tangent ogive)
G6 (flatbase, 6 calibers long secant ogive)
G7 (long 7.5° boat-tail, 10 calibers tangent ogive, preferred by some manufacturers for very-low-drag bullets[12])
G8 (flatbase, 10 calibers long secant ogive)
GL (blunt lead nose)
G1 BC projectile
G7 BC projectile
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10-04-2013, 10:48 AM #1Caretaker
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