30 CAL 180GR coefficient data help

Discussion in 'Long Range Hunting & Shooting' started by 338 LEGEND, May 4, 2009.

  1. 338 LEGEND

    338 LEGEND Well-Known Member

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    Jan 1, 2009
    Does any one have data on the 180 gr accubond bullet for long range ( coef )? I know the starting coef is .507
     
  2. Michael Eichele

    Michael Eichele Well-Known Member

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    Jan 6, 2003
    I am using .524 in my 12x 300 RUM based on double chronies AND drop tests out to 725 yards.

    Actually, that is the ballistic tip that I am using. The AB should be very close but possibly different.

    .507 has always seemed low, not only mathematically but also in the real world.