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can someone tell me the true bc?

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  #1  
Unread 08-04-2010, 02:25 PM
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can someone tell me the true bc?

Can someone tell me the true BC of a 168vld from a 7 stw going 3200 fps at 7000 feet 50 degree weather?
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" Real elk guns start with the number 3 or bigger and blow two holes, one in and one out." - My Dad
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  •   #2  
    Unread 08-04-2010, 06:07 PM
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    Join Date: Aug 2003
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    Re: can someone tell me the true bc?

    Anyone could guess at 'true BC' without all the measurements, or local pressure, & humidity..

    My guess for local BC:
    G1 .827
    G7 .399

    I don't know if I'd pass a lie detector test though...
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      #3  
    Unread 08-05-2010, 04:35 AM
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    Join Date: Dec 2002
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    Re: can someone tell me the true bc?

    sight in your rifle at 300 yards, on a large target shoot it at 400,500,and 600 yards, measure your actual drops. then adjust the BC on your drop chart program till the chart matches your actual drops and there ya have it.
    RR
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      #4  
    Unread 08-05-2010, 05:51 AM
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    Re: can someone tell me the true bc?

    Go to JBM and find the bullet and use the BC from the one that says "Litz".
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      #5  
    Unread 08-05-2010, 07:34 AM
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    Re: can someone tell me the true bc?

    What's jbm?
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    Mike


    " Real elk guns start with the number 3 or bigger and blow two holes, one in and one out." - My Dad
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      #6  
    Unread 08-05-2010, 07:42 AM
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    Re: can someone tell me the true bc?

    It is the best of the online ballistics programs.

    JBM - Calculations - Trajectory
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      #7  
    Unread 08-05-2010, 07:43 AM
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    Re: can someone tell me the true bc?

    Hey thanks a ton man
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    Mike


    " Real elk guns start with the number 3 or bigger and blow two holes, one in and one out." - My Dad
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