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handloading 300wsm

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  #1  
Unread 03-07-2010, 11:32 PM
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Join Date: Feb 2010
Location: just east of memphis, tn
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handloading 300wsm

I recently bought a winchester mdl 70 coyote in 300wsm. second box of bullets were federal premium factory ammo and groups were around 1moa. since then a friend and I have been trying to work up a load for it and I wanted to shoot 180 gr accubonds. I have all but given up on getting the accubonds to group as we have tried several different powders with nothing grouping under 1.5 moa. does anyone have any suggestions?
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  •   #2  
    Unread 03-08-2010, 08:02 AM
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    Join Date: Jan 2006
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    Re: handloading 300wsm

    Try 65-66grs of Reloader 17. It is the best performing powder in the 300wsm with 180's. I am getting 3180fps out of a 26" barrel with 180's. I have had really good luck with Supreme 780 too.
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      #3  
    Unread 03-08-2010, 02:19 PM
    mkg mkg is offline
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    Join Date: Nov 2007
    Location: Satillite Beach, Florida
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    Re: handloading 300wsm

    I've been using H-4350 with both 180 Nosler Ballistic tips and Berger 185 VLD's with sb-MOA results @ 2995ft/sec .

    Mike
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      #4  
    Unread 03-08-2010, 09:54 PM
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    Join Date: Jul 2009
    Location: Idaho
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    Re: handloading 300wsm

    I use 63 gr of 4350 with WLRM primmers and winchester brass
    I get sub moa groups out to 500 yards
    hope this helps
    retiredcpo
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      #5  
    Unread 03-09-2010, 07:44 AM
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    Join Date: Jun 2008
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    Re: handloading 300wsm

    I'm getting good groups with 165gr Hornady Interbonds with 69.0grs of Winchester WXR or Reloader-22 and also 65.0grs of IMR-4350.
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      #6  
    Unread 03-09-2010, 11:30 AM
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    Join Date: May 2008
    Location: South of Canada and North of Wyoming
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    Re: handloading 300wsm

    H4350 and RL17 are good powders in the 300 WSM. RL17 will get you a good bit more velocity. I would say just keep trying different combos of bullets and powder until you get a good one. And make sure your loading procedures are accurate and consistant.

    -Mark

    Last edited by MontanaRifleman; 03-10-2010 at 12:49 AM.
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      #7  
    Unread 03-10-2010, 12:13 AM
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    Join Date: Dec 2008
    Location: Boise IDAHO
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    Re: handloading 300wsm

    I am using 65 grains of h4350 loaded to 2.855 oal with 180 ct ballistic silvertips in my tikka and its a .5" gun. Attempted the accubonds which look the same but cost twice as much and best group I could get was 2+" I was so disgusted I did not even measure it I just switched back to my cheap highly effective bullets. I have not had anything yet that shot the accubonds well.
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