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5.56 primers HELP

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  #1  
Unread 03-13-2012, 06:22 PM
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5.56 primers HELP

What do you all think about these primers? I am shooting this out of a 5.56 noveske upper that is 14.5". This is 2 different 5rd loads. These are loaded at 23.4gr and 23.7gr of AR Comp under 75gr Hornady BTHP. The load data on Alliants site states 22.1 for 77gr SMK. Average velocity is 2703 at 23.4 and 2774 for 23.7. These are seated at mag length. Do these primers look OK or do I need to back it down?



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  •   #2  
    Unread 03-13-2012, 08:32 PM
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    Re: 5.56 primers HELP

    Hi how's it goin ? Now I'm not an authority on the subject but I have loaded a lot of 223 . I honestly wish my primers looked that good . I've gotten away with loading the same brass several times and when my charge was too hot it'll either split on the mouth of the case or I've even had my primers blow completely out of the case. Which on an a.r. platform can be problematic. This sight has a technical link I heard about that'll help should a problem happen. They do shoot great when you load em to the nuts though!
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      #3  
    Unread 03-13-2012, 08:48 PM
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    Re: 5.56 primers HELP

    What primer is it CCI #41?
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      #4  
    Unread 03-13-2012, 08:51 PM
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    Re: 5.56 primers HELP

    Thanks for the info. These are cci 400 primers.
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      #5  
    Unread 03-13-2012, 08:55 PM
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    Re: 5.56 primers HELP

    Ok I've been using 450 primers probably over kill but a lot of fun.
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      #6  
    Unread 03-13-2012, 11:08 PM
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    Re: 5.56 primers HELP

    The only thing I see that might be a little off is firing pin depth causing them to slightly crater, and this usually happens when under pressured. Also try 450s or 41s.
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      #7  
    Unread 03-13-2012, 11:16 PM
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    Re: 5.56 primers HELP

    I agree magnum primers.

    Last edited by SteveAreno; 03-13-2012 at 11:23 PM. Reason: Wrong post
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