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Ruger M77MKII 300 Win Mag with 208gr A-Max

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  #1  
Unread 07-04-2011, 06:56 PM
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Join Date: Nov 2002
Location: Alamogordo, NM
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Ruger M77MKII 300 Win Mag with 208gr A-Max

I am looking for some loads, in particular has anyone used IMR7828SSC? I have been loading this bullet in RP cases with 72grs of 7828, wondering if I am safe to bump that up by a grain. I am also interested in what others have found to be most accurate?
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  •   #2  
    Unread 07-04-2011, 09:16 PM
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    Join Date: Sep 2010
    Location: So. California
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    Re: Ruger M77MKII 300 Win Mag with 208gr A-Max

    You should be good up to around 75ish, maybe more. Hard to get too much IMR7828ssc into a 300wm case. I mean you can show pressure, but I have never managed to get so much I had problems with extraction or anything like that. Take that with a grain of salt, as the chamber on the 300 I load for is a fairly loose one, with a lot of freebore.

    Just work up slowly in half grain increments, and you should be fine as long as you are paying attention.

    Have a good one,
    Gary
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      #3  
    Unread 07-05-2011, 09:24 AM
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    Re: Ruger M77MKII 300 Win Mag with 208gr A-Max

    Thank you sir.
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