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

    Nov 17, 2005
    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

    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

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

    Michael Eichele Well-Known Member

    Jan 6, 2003
    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.