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Rifles, Reloading, Optics, Equipment
Reloading
338Edge - Remington Case Cracks and Split
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<blockquote data-quote="AJ Peacock" data-source="post: 302806" data-attributes="member: 4885"><p>+1 for what 700P said.</p><p></p><p>That is called case head seperation and is due to thinning in front of the web (the thick part of the case head). If you push the shoulder back too much, everytime you shoot a piece of brass, it stretches to fill the void and the stretching happens the most from that point and the brass flows forward. After enough shots, the brass gets so thin that it fails.</p><p></p><p>10-12 times is very good brass life. I've shot brass that much, but don't trust it. I throw my Edge brass out after 8 reloads.</p><p></p><p>Do you measure how much you're pusing your shoulder back? As 700P said, just push it back .001-.0015". You can measure this value with a bullet comparator.</p><p></p><p>AJ</p></blockquote><p></p>
[QUOTE="AJ Peacock, post: 302806, member: 4885"] +1 for what 700P said. That is called case head seperation and is due to thinning in front of the web (the thick part of the case head). If you push the shoulder back too much, everytime you shoot a piece of brass, it stretches to fill the void and the stretching happens the most from that point and the brass flows forward. After enough shots, the brass gets so thin that it fails. 10-12 times is very good brass life. I've shot brass that much, but don't trust it. I throw my Edge brass out after 8 reloads. Do you measure how much you're pusing your shoulder back? As 700P said, just push it back .001-.0015". You can measure this value with a bullet comparator. AJ [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
338Edge - Remington Case Cracks and Split
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