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Thread: 223 barrel length?

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  1. 17-03-2015, 08:07 PM #1
    gimp
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    Yeah I'm happier loading hot in a bolt action than an AR15 I think? What's your theory?
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  2. 17-03-2015, 10:54 PM #2
    Beavis
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    Quote Originally Posted by gimp View Post
    Yeah I'm happier loading hot in a bolt action than an AR15 I think? What's your theory?
    My theory is that a 5.56 AR will run safely at higher pressure than a SAAMI spec rifle by default. I'm certain an AR will catastrophically fail due to a hot load before a bolt gun will, but if the AR is designed to run higher pressure loads off the bat... Proper mil spec guns are proofed with a 70k psi load. Ramshot manual lists 5.56 loads running in the 60k psi range versus 55k for a normal .223.

    http://www.ramshot.com/wp-content/up...ec_1-23-14.pdf
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