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300 Win mag load advice

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  #1  
Unread 10-18-2008, 11:01 AM
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300 Win mag load advice

For a 26" barrel, 1-10 twist. Anyone have a good starting load for some of the heavier bullets? 180-210 gr? I've never even fired a 300 win so I am starting from scratch here. I'm not particular about a certain bullet, but Bergers and Sierras would probably be what I will end up using.

Thanks for any advice.
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  •   #2  
    Unread 10-18-2008, 11:04 AM
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    Re: 300 Win mag load advice

    Quote:
    Originally Posted by montana_native View Post
    For a 26" barrel, 1-10 twist. Anyone have a good starting load for some of the heavier bullets? 180-210 gr? I've never even fired a 300 win so I am starting from scratch here. I'm not particular about a certain bullet, but Bergers and Sierras would probably be what I will end up using.

    Thanks for any advice.

    Definitely not a starting load, but mine likes 190g Bergers with 82g of H1000. Just flattens primers, no other pressure signs. Brass lasts about 5 loads with neck sizing only.

    It's a Savage 112 with a 26" Stainless fluted heavy varmint barrel.

    Last edited by geargrinder; 10-18-2008 at 11:10 AM.
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      #3  
    Unread 10-18-2008, 11:19 AM
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    Re: 300 Win mag load advice

    Nosler Accubond 200 gr is in a class by itself IMO. High ballistic coefficient and excellent downrange performance. RL22 is considered by many including myself to be the powder for the 300 win mag, 72.5 gr is the max load as listed in the Nosler manual and definitely Fed215M primers.
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      #4  
    Unread 10-18-2008, 12:01 PM
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    Re: 300 Win mag load advice

    RL 22 works well but I had better luck with H1000 and Retumbo with 190 and 210s
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      #5  
    Unread 10-18-2008, 05:57 PM
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    Re: 300 Win mag load advice

    I've been messing around with Berger 210gr VLDs, 200gr SMK's, and Hornadys 208gr. A-Max. And the SMKs have been shooting lights out in my Remmy 700. I use 64.5 grs of IMR 4350 with CCI Large Rifle Mag primers and been neck sizing the last 3 times on the brass. Sierras manual says it should be running about 2800fps +/-. I don't have a chrony or I could tell you what they are running. I have been using the same grs of powder for each bullet type. So far I have gotten 4-5 firing on this brass and the primer pockets are still tight. The SMKs are shooting great out to 735 yards. Groups at 100 yards are less the 1/2 inch.
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      #6  
    Unread 10-19-2008, 08:47 AM
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    Re: 300 Win mag load advice

    I am assuming that the 220 gr SMK, would be too much for this gun. Has anyone else documented velocity with the heavy stuff? I guess I am now kind of torn on which bullet to work with and what's going to be too heavy.

    Thanks for your help.

    Last edited by montana_native; 10-19-2008 at 08:55 AM.
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      #7  
    Unread 10-19-2008, 09:16 AM
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    Re: 300 Win mag load advice

    Worked up a load of 200gr MKs and GKs with 76.5 of RL25
    win cases 215M shoots well out past 1400yds at Chytec training.
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