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7 mm ultra max velocity

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  #1  
Unread 08-19-2004, 11:49 PM
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Join Date: Dec 2003
Location: Negaunee, Mi
Posts: 51
7 mm ultra max velocity

What are you guys getting for max velocity with 140 and 160grm bullets? Be sure to include powder and barrel length.
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  •   #2  
    Unread 08-20-2004, 08:20 PM
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    Join Date: Sep 2002
    Location: Illinois
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    Re: 7 mm ultra max velocity

    I'm running 3500 fps with NBT Moly and I-7828 out of a 26" bbl. Not the fastest, but fast enough.
    db
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      #3  
    Unread 08-21-2004, 07:42 AM
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    Re: 7 mm ultra max velocity

    How many grains of 7828? I assume your using a 140gr bullet?
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      #4  
    Unread 08-21-2004, 04:25 PM
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    Re: 7 mm ultra max velocity

    140 gr bullet with 92.0 grns I-7828 lit by a 215 over a PACT chrono.
    db
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      #5  
    Unread 08-21-2004, 11:32 PM
    daveosok
     
    Posts: n/a
    Re: 7 mm ultra max velocity

    How many grains of powder are you using to achieve this velocity?
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      #6  
    Unread 08-22-2004, 08:11 AM
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    Re: 7 mm ultra max velocity

    DHostler, Have you tried any other powders lke h-1000, retumbo, wc870, rl-25,rl-22, Viht 170, aa8700, and aa 3100? There seems to be very little data oon loading various powders for this cartridge.
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