BC ?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by gamedog, Sep 6, 2007.

  1. gamedog

    gamedog Well-Known Member

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    Can the bc of a .30 caliber bullet change depending on the case it's fired from? For example a 180gr TSX from a 300 win mag vs a 180gr TSX from a 30-378Wby. I'm not sure if velocity affects the bc rating. Thanks
     

  2. royinidaho

    royinidaho Writers Guild

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    Take a look at Sierra's BCs. They differ slightly for changes in velocity. All bullet do.

    Thus if velocities were vastly different in the two cartridges, I suppose the BCs would be different because of the different velocities.

    However, I wouldn't be too concerned about the difference, IMO.
     

  3. gamedog

    gamedog Well-Known Member

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    Thanks Roy:D
     
  4. royinidaho

    royinidaho Writers Guild

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    Y'r welcome.