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Rifles, Bullets, Barrels & Ballistics Applied Ballistics

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BC ?

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  #1  
Unread 09-06-2007, 02:06 PM
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BC ?

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
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  •   #2  
    Unread 09-06-2007, 02:18 PM
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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.
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      #3  
    Unread 09-06-2007, 02:58 PM
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    Thanks Roy
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      #4  
    Unread 09-06-2007, 05:47 PM
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    Y'r welcome.
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