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Rifles, Reloading, Optics, Equipment
Reloading
The Fast And Accurate Absolute Hammer 🔥🎯
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<blockquote data-quote="nksmfamjp" data-source="post: 2722445" data-attributes="member: 1951"><p>So, you switched to primers with a harder cup, still have significant ejector marks, but you think pressure is ok? I would guess you are mid 70000's….</p><p></p><p>Hopefully you are shooting in 120F weather….what temp are you shooting in? An increase in temperature will rapidly accelerate your pressure. Which will rapidly accelerate your bolt failure.</p><p></p><p>Are you aware of the early fatigue failure mode with the 6 ARC in AR's? At 60,000 psi, AR15 bolts fatigue way early without warning, so AR's use 52,000 psi data. Hmm, I would suggest you get with a qualified engineer also you can accurately identify when your bolt will blow up in your face.</p><p></p><p>I seriously mean no disrespect, but it seems like you are not understanding what the bolt fatigue failure mode is or what it will look like.</p></blockquote><p></p>
[QUOTE="nksmfamjp, post: 2722445, member: 1951"] So, you switched to primers with a harder cup, still have significant ejector marks, but you think pressure is ok? I would guess you are mid 70000’s…. Hopefully you are shooting in 120F weather….what temp are you shooting in? An increase in temperature will rapidly accelerate your pressure. Which will rapidly accelerate your bolt failure. Are you aware of the early fatigue failure mode with the 6 ARC in AR’s? At 60,000 psi, AR15 bolts fatigue way early without warning, so AR’s use 52,000 psi data. Hmm, I would suggest you get with a qualified engineer also you can accurately identify when your bolt will blow up in your face. I seriously mean no disrespect, but it seems like you are not understanding what the bolt fatigue failure mode is or what it will look like. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
The Fast And Accurate Absolute Hammer 🔥🎯
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