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Rifles, Reloading, Optics, Equipment
Reloading
Too much pressure?
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<blockquote data-quote="J E Custom" data-source="post: 290359" data-attributes="member: 2736"><p>+1</p><p>Primers are a good indicator as is bolt lift.</p><p></p><p>Some primers have a softer cup and the CCIs are softer than most and will show signs of </p><p>pressure before some others.</p><p></p><p>Normally the reason a group opens up is the Standard deviation is not good and a different powder primer combination is called for.</p><p></p><p>I would try one change at a time. Change the primer only and see if there is any difference.</p><p>Then change to a powder with the same approximate burn rate.</p><p></p><p>But I would highly recomend a chronograph because it will separate the groupies from</p><p>the rock stars. </p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 290359, member: 2736"] +1 Primers are a good indicator as is bolt lift. Some primers have a softer cup and the CCIs are softer than most and will show signs of pressure before some others. Normally the reason a group opens up is the Standard deviation is not good and a different powder primer combination is called for. I would try one change at a time. Change the primer only and see if there is any difference. Then change to a powder with the same approximate burn rate. But I would highly recomend a chronograph because it will separate the groupies from the rock stars. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Too much pressure?
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