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338 Lapua Improved Information

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  #1  
Unread 03-29-2007, 08:16 PM
Chawlston
 
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338 Lapua Improved Information

Hello,

Could someone who has the program for cartridge performance projections run the numbers on this with the 225 Accubond and the 300 grain Sierra. The barrel length is 30" and the twist is 1 in 10". Additionally, I am located at sea level in South Carolina. Thanks in advance.

James
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  •   #2  
    Unread 03-29-2007, 09:29 PM
    Platinum Member
     
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    Re: 338 Lapua Improved Information

    That cartridge will push 300 grain bullets at 3100 from a 36 inch barrel and probably 2950-3000 from a 30 inch. 225's would probably do 3400 to 3500 from the 30 inch.
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      #3  
    Unread 03-30-2007, 09:23 PM
    Chawlston
     
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    Re: 338 Lapua Improved Information

    [ QUOTE ]
    That cartridge will push 300 grain bullets at 3100 from a 36 inch barrel and probably 2950-3000 from a 30 inch. 225's would probably do 3400 to 3500 from the 30 inch.

    [/ QUOTE ]

    Thanks GG. BTW, I just bought a 6MM dasher on a Hall "B" with a Meredith stock.

    I also got (by accident) a unique BRX.... One with a 40 degree shoulder. The reamer manufacturer made it good by giving me both the dasher and the brx reamers and gages for the price of one. Anyway, now we can see which one has an edge.

    James
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      #4  
    Unread 03-31-2007, 09:23 AM
    Gold Member
     
    Join Date: Jan 2006
    Location: Nebraska
    Posts: 507
    Re: 338 Lapua Improved Information

    [ QUOTE ]


    I also got (by accident) a unique BRX.... One with a 40 degree shoulder. The reamer manufacturer made it good by giving me both the dasher and the brx reamers and gages for the price of one. Anyway, now we can see which one has an edge.

    [/ QUOTE ]
    So how does the 40 BRX differ from the Dasher. Shorter neck on the BRX?

    James
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      #5  
    Unread 03-31-2007, 08:42 PM
    Chawlston
     
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    Re: 338 Lapua Improved Information

    [ QUOTE ]
    [ QUOTE ]


    I also got (by accident) a unique BRX.... One with a 40 degree shoulder. The reamer manufacturer made it good by giving me both the dasher and the brx reamers and gages for the price of one. Anyway, now we can see which one has an edge.

    [/ QUOTE ]
    So how does the 40 BRX differ from the Dasher. Shorter neck on the BRX?
    James

    [/ QUOTE ]

    Yes, the neck is shorter.

    James
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      #6  
    Unread 03-31-2007, 08:50 PM
    Platinum Member
     
    Join Date: Jun 2007
    Location: Wilmington NC
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    Re: 338 Lapua Improved Information

    You will like the longer necks in the BRs IMO.

    Had the BRS and now shooting the BRDX which is a Ack Imp with long neck exactly same H20 as dasher but with long neck.

    BH
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      #7  
    Unread 04-01-2007, 05:47 PM
    Chawlston
     
    Posts: n/a
    Re: 338 Lapua Improved Information

    [ QUOTE ]
    You will like the longer necks in the BRs IMO.

    Had the BRS and now shooting the BRDX which is a Ack Imp with long neck exactly same H20 as dasher but with long neck.

    BH

    [/ QUOTE ]

    The BRX I originally ordered was the Bob Crone version and the one they sent to me was the 40 degree neck vice the 30 degree one designed by some PA benchrest club guy.

    James
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