amax/accubond b.c. wanted

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by 30-06 boy, Dec 28, 2005.

  1. 30-06 boy

    30-06 boy Well-Known Member

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    hey guys does anyone know what the bc of 178 amax and 180 accubond are(30 caliber).thanks /ubbthreads/images/graemlins/grin.gif
     
  2. Idaho_Elk_Huntr

    Idaho_Elk_Huntr Well-Known Member

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    Dec 24, 2005
    .495 on the A_Max and I dont know on the Accubond. You may find it on their website.
     

  3. blank

    blank Member

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    Aug 5, 2005
    The Bc of the .308 180gr Accubond is 0.507
     
  4. Michael Eichele

    Michael Eichele Well-Known Member

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    Funny thing about the 178 AMAX is it will vary in a LARGE way depending on what twist youre using and how fast you drive em.

    Published is .495 or .496. I assume the factory is using G1?? My experiances have been drastically differant. Out of my 11.25 twist 308 at 2550 FPS I was getting .318 G5. Out of my 12 twist 300 RUM, I am getting .495 G7 which is amazingly flat. Close to 1.011 G1. That is unbelievable.

    I havent fired the 180 AB past 300 yards, but have fired the 200 AB out to 600 yards and its BC worked out to right at .588-.590 which is what they are published at. I would suspect that the 180 AB is going to be very close to .507.

    PS, There are several others here that have had similar results with the AMAX's with a variety of calibers and weights.