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270 Weatherby load?

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  #1  
Unread 01-14-2010, 03:32 PM
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Join Date: Feb 2008
Location: northern new mexico
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270 Weatherby load?

Does anybody have a good load for 270 Weatherby with 140 gr. Nosler
accubonds. My rifle was just built with Mike Rock barrel-- without
the Weatherby throat. Possibly looking at RL22 or ? Maybe a Hogden extreme powder? Any suggestions would be appreciated.
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  •   #2  
    Unread 01-14-2010, 09:09 PM
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    Re: 270 Weatherby load?

    can not remember the load but try one of the 4831 powders.it worked really good for a friends 270 weatherby.
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      #3  
    Unread 01-16-2010, 04:56 AM
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    Re: 270 Weatherby load?

    If it was me and I couldn't get any reliable info. (try calling powder companies tech line, ie Alliant for RL22) They can usually get you pointed in the right direction. But if left to my own devices, Use of a reliable chronograph is a must; I would drop 5% below STARTING loads for regular 270 wby data (due to shorter throat in your . See where your speed is and if any excess pressure signs are apparent. From that point (if more speed is needed)I would proceed to work up in charge weight (1 grain at a time) to my target velocity watching for signs of excess pressure along the way. It may not be kosher but thats what I'd do if I had no other information to go on.
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      #4  
    Unread 01-16-2010, 05:03 AM
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    Re: 270 Weatherby load?

    To answer further, As far as powders go, I'd try IMR 7828, RL22, and RL25 first (for 140gr ab).
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      #5  
    Unread 01-17-2010, 12:50 AM
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    Re: 270 Weatherby load?

    try H1000 start @ 73gr and work your way up,look ask experiment and document!!!!
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      #6  
    Unread 01-19-2010, 12:40 PM
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    Location: northern new mexico
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    Re: 270 Weatherby load?

    Thanks for the info guys. I tried H1000 and was only getting 1.5" groups at
    100 yds. Tried RL22 and got sub 1" groups. Might try IMR7828. Would like to
    stay with a Hogden extreme powder if I could. Tried H4350, not very accurate.
    Maybe H4831 would work.
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      #7  
    Unread 01-19-2010, 03:48 PM
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    Re: 270 Weatherby load?

    If you're getting -moa groups with said powder try different oal should put you there...
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