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Gunpowder VihtaVuori N150.

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  #1  
Unread 06-15-2010, 03:38 AM
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Join Date: Aug 2009
Posts: 31
Gunpowder VihtaVuori N150.

Hi.
What load of gunpowder VihtaVuori N150 it is needed to utillize for achievement speed 2400fps-2900fps?
Bullet 180gr.-200gr.-220gr.-240gr..
Barrel/cal. 30-06 , 22" (steel 4140)
Your recommendations.
Thank you for an answer,
Kristian.
P.S.
Gunpowder VihtaVuori N150 N150 - 8lb - N150-8 by: Vihtavuori - Vihtavuori-Lapua.com near on properties to to IMR 4350?
I plan to utillize bullet 65G , 65C and 65B
http://www.woodleighbullets.co...llet%20List%203.html
and
bullet 308177HV198
GS CUSTOM BULLETS - Specifications for use
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  •   #2  
    Unread 06-15-2010, 04:04 AM
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    Join Date: Apr 2009
    Location: Carrollton, Ohio
    Posts: 637
    Re: Gunpowder VihtaVuori N150.

    My Hornady manual lists VIHT n-150 for the lighter bullets, 150gr and below. It suggests using, VIHT N-160 for the heavier bullets.

    It has the two powders listed for the lighter bullets (IMR 4350 and VIHT N-150,) with a 5 grain difference in charges.

    Last edited by justgoto; 06-15-2010 at 04:09 AM. Reason: additional info
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      #3  
    Unread 06-15-2010, 04:43 AM
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    Join Date: Aug 2009
    Posts: 31
    Re: Gunpowder VihtaVuori N150.

    Quote:
    Originally Posted by justgoto View Post
    My Hornady manual lists VIHT n-150 for the lighter bullets, 150gr and below. It suggests using, VIHT N-160 for the heavier bullets.

    It has the two powders listed for the lighter bullets (IMR 4350 and VIHT N-150,) with a 5 grain difference in charges.
    Hi.
    I am in a position to apply only the gunpowder of SUNAR it is an analogue VIHT N-150 ,-initial weight of gunpowder for heavy bullets from 45gr.+.
    http://gsgroup.co.za/burnrates.html

    Last edited by kristian55; 06-15-2010 at 04:46 AM.
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      #4  
    Unread 06-15-2010, 03:27 PM
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    Join Date: Aug 2009
    Posts: 31
    Re: Gunpowder VihtaVuori N150.

    Quote:
    Originally Posted by justgoto View Post
    My Hornady manual lists VIHT n-150 for the lighter bullets, 150gr and below. It suggests using, VIHT N-160 for the heavier bullets.

    It has the two powders listed for the lighter bullets (IMR 4350 and VIHT N-150,) with a 5 grain difference in charges.
    My calculations:
    I knowing that limits SAAMI specifications for the rifles of caliber 30-06 make ANSI PSI 60.000 - ANSI CUP 50.000
    for 300Win.ANSI PSI 64.000 - ANSI CUP 54.000.
    I put a question about high and critical speeds which can be utillized for a barrel/cal. 30-06 , 22" (steel 4140).
    PSI 60.000 - 4218.42 at. coming from that critical pressure is in a barrel- I put a question about high and critical speeds,-coming from that critical pressure is in a barrel/cal. 30-06 , 22" (steel 4140)-4218.42 at..
    E(max. and critical)=mv2/2
    For example:
    for a bullet which I want to utillize CGC Bullet .308" 177gr HV on barrel/cal. 30-06 , 22" (steel 4140) stalling speed will be 2805.12ft/s
    at critically maximal pressure PSI 59786.4.
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