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25 wssm or 25 wssm improved 40 degree or 25-284

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  #8  
Unread 03-19-2009, 11:21 PM
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Join Date: Mar 2009
Location: Amarilo, TX
Posts: 10
Re: 25 wssm or 25 wssm improved 40 degree or 25-284

Hello
I'm new to this form so please bear with me. I currently shoot a 25 WSSM in an AR style rifle with match grade barrel. I Have looked at all the commercial bullet makers and I cannot find a 140gr in .257. Also in all the loading books using a 120gr the most they can squeeze is about 2900. Could you possibly be talking about the WSM case and not the WSSM? The WSSM case is 1.670" long the WSM is much longer.
Thanks for the clarification.

Last edited by littlebrotherc; 03-19-2009 at 11:27 PM.
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  •   #9  
    Unread 03-20-2009, 06:16 PM
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    Join Date: Aug 2005
    Location: Back in the south -NW FL..
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    Re: 25 wssm or 25 wssm improved 40 degree or 25-284

    The bullet maker is/was Richard Graves -wildcat bullets -a custom bullet maker who's company is in the process of being sold.

    Also had a 257cal. 156gr rbbt bullet these will not stabilize in the normal 1-10" twist barrels .
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      #10  
    Unread 03-20-2009, 11:57 PM
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    Join Date: Mar 2009
    Location: Amarilo, TX
    Posts: 10
    Re: 25 wssm or 25 wssm improved 40 degree or 25-284

    Thanks Mike

    For the info on the 140 gr. I think that the 140 is to large for the 25 WSSM.

    So far as using the 25WSSM for longer range shots, what is the acceptable F/S and energy needed to be acceptable? I know from ballistic tables the 25 WSSM using a Berger 115gr at 3076 f/s will be moving at 2061 f/s and have 1084 ft/lbs of energy at 600 Yd's. It also will drop 59.3 inches when zeroed at 200 Yd's. Is this acceptable for Mule and Whitail? How much further out might I push it?

    Thanks
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