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6.5 Grendel for whitetail
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<blockquote data-quote="cajun" data-source="post: 2659536" data-attributes="member: 9772"><p>Copied and pasted from the hammer website</p><p>"Muzzle velocity should not exceed max load velocity listed for similar weight bullets listed in loading manual. Muzzle velocity is an indication of pressure."</p><p></p><p>I can guarantee you are over 52k in the grendel. Does that mean your in imminent danger no. The 52k is for bolt thrust due to having a fat case head in an ar platform designed for 223. At some point your bolt will fail. How many rounds it will take who knows. This was a problem in the grendel from day one. </p><p></p><p>People should understand that reading primers is not an exact science. It's also impossible to feel bolt lift in a semi auto. In a modern bolt action you have a lot more leeway. The people who make these bullets are telling you dont exceed published velocities for similar weight bullets. The problem with all copper bullets has been the long bearing surface needed to achieve weight. This meant they built pressure early. Hammer has reduced the bearing surface by slightly curving it unlike the weatherby design with huge freebore. </p><p></p><p>I'm not telling you you are stupid so dont put words in my mouth. What I am saying is that you are taking a risk using higher pressure loads in an ar with an aluminum receiver. If you are ok with that, thats on you. What I dont agree with is guys putting data out there for others to use based on "well nothing bad has happened yet". Because basically thats what you have.</p></blockquote><p></p>
[QUOTE="cajun, post: 2659536, member: 9772"] Copied and pasted from the hammer website “Muzzle velocity should not exceed max load velocity listed for similar weight bullets listed in loading manual. Muzzle velocity is an indication of pressure.” I can guarantee you are over 52k in the grendel. Does that mean your in imminent danger no. The 52k is for bolt thrust due to having a fat case head in an ar platform designed for 223. At some point your bolt will fail. How many rounds it will take who knows. This was a problem in the grendel from day one. People should understand that reading primers is not an exact science. It’s also impossible to feel bolt lift in a semi auto. In a modern bolt action you have a lot more leeway. The people who make these bullets are telling you dont exceed published velocities for similar weight bullets. The problem with all copper bullets has been the long bearing surface needed to achieve weight. This meant they built pressure early. Hammer has reduced the bearing surface by slightly curving it unlike the weatherby design with huge freebore. I’m not telling you you are stupid so dont put words in my mouth. What I am saying is that you are taking a risk using higher pressure loads in an ar with an aluminum receiver. If you are ok with that, thats on you. What I dont agree with is guys putting data out there for others to use based on “well nothing bad has happened yet”. Because basically thats what you have. [/QUOTE]
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6.5 Grendel for whitetail
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