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Rifles, Reloading, Optics, Equipment
Reloading
normal primer or overpressure?
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<blockquote data-quote="Barrelnut" data-source="post: 903954" data-attributes="member: 74902"><p>Kind of hard to tell just by the looking of the primer if there is a pressure problem. Reason is different primers have different hardness and thickness of the primer case. For example CCI primers have a thicker case than Federal primers.</p><p></p><p>For pressure signs, I look at the head of the case itself. If the case it slamming against the bolt face so hard that it is causing the ejector to leave a shiny little ring on the case head, I call it quits and back off some. Also if the bolt is suddenly harder to lift cause the case has expanded so much in the chamber during the firing.</p><p></p><p>So usually look at all three of these things: primer flatness, ejector marks, bolt lift and decide when to start backing off.</p><p></p><p>Another good sign is when you seat the new primer and the primer pocket is suddenly real loose is another good sign that pressures are getting too high.</p><p></p><p>How about sending us some pics of your case heads with primers and we look at those. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Barrelnut, post: 903954, member: 74902"] Kind of hard to tell just by the looking of the primer if there is a pressure problem. Reason is different primers have different hardness and thickness of the primer case. For example CCI primers have a thicker case than Federal primers. For pressure signs, I look at the head of the case itself. If the case it slamming against the bolt face so hard that it is causing the ejector to leave a shiny little ring on the case head, I call it quits and back off some. Also if the bolt is suddenly harder to lift cause the case has expanded so much in the chamber during the firing. So usually look at all three of these things: primer flatness, ejector marks, bolt lift and decide when to start backing off. Another good sign is when you seat the new primer and the primer pocket is suddenly real loose is another good sign that pressures are getting too high. How about sending us some pics of your case heads with primers and we look at those. :) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
normal primer or overpressure?
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