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6.5 Grendel for whitetail
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<blockquote data-quote="cajun" data-source="post: 2659627" data-attributes="member: 9772"><p>I'll make one more comment and I'm done. You mentioned R26 in 6.5 creedmoor. When guys started posting their data I was skeptical. They were getting 6.5 284 numbers pretty much with the 140. I ran a pressure test and did not get sticky bolt lift primers were fine. When quickload added R26 we ran the numbers. They were within 10 fps of my chrono and the max load that looked perfectly safe was over saami by about 2k. But it was less than 70k where you start seeing issues with brass. About that time berger put out some data as well. </p><p>Now in a modern bolt action with a steel reciever thats vented to handle a case failure it's not as much an issue. All modern firearms are tested with proof loads as well. An AR with an aluminum receiver is different. If the case head goes while the bolt is moving back that aluminum receiver is going to have a bad day. If your lucky it blows out the magwel. But you might not be lucky. This is why I dont like pushing things in the AR. It normally takes a serious over charge,wrong powder or barrel obstruction to destroy a bolt action. Not so in the AR.</p></blockquote><p></p>
[QUOTE="cajun, post: 2659627, member: 9772"] I’ll make one more comment and I’m done. You mentioned R26 in 6.5 creedmoor. When guys started posting their data I was skeptical. They were getting 6.5 284 numbers pretty much with the 140. I ran a pressure test and did not get sticky bolt lift primers were fine. When quickload added R26 we ran the numbers. They were within 10 fps of my chrono and the max load that looked perfectly safe was over saami by about 2k. But it was less than 70k where you start seeing issues with brass. About that time berger put out some data as well. Now in a modern bolt action with a steel reciever thats vented to handle a case failure it’s not as much an issue. All modern firearms are tested with proof loads as well. An AR with an aluminum receiver is different. If the case head goes while the bolt is moving back that aluminum receiver is going to have a bad day. If your lucky it blows out the magwel. But you might not be lucky. This is why I dont like pushing things in the AR. It normally takes a serious over charge,wrong powder or barrel obstruction to destroy a bolt action. Not so in the AR. [/QUOTE]
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6.5 Grendel for whitetail
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