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Rifles, Reloading, Optics, Equipment
Reloading
Primer pocket depth
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<blockquote data-quote="bigedp51" data-source="post: 1564985" data-attributes="member: 28965"><p>The Op measured a primer and then set his uniformer cutting depth to .005 more than his primer height.</p><p></p><p>The problem is this is not the way to adjust the cutting depth of the primer pocket uniformer.</p><p></p><p>The problem is the primer anvils on a new primer are sitting high and when the primer is seated it should have a slight primer crush with the anvil putting a preload on the priming compound.</p><p></p><p><img src="https://i.imgur.com/oiIRxun.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>NOTE, I have a military drawing of a Lake City 7.62 case and the max distance below flush for the primer is .008. Meaning your cases with the primer .012 below flush should be thrown away.</p><p></p><p>I think its the Sierra manual that tells you the primers should be seated from being flush to .004 below flush to give you a ball park idea on seating depth.</p><p></p><p>Below the primers do vary in height and primer pockets can vary in depth. but this is where you go by feel and make sure the primer bottomed out with a preload on the anvil.</p><p></p><p><img src="https://i.imgur.com/BlerqTB.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="bigedp51, post: 1564985, member: 28965"] The Op measured a primer and then set his uniformer cutting depth to .005 more than his primer height. The problem is this is not the way to adjust the cutting depth of the primer pocket uniformer. The problem is the primer anvils on a new primer are sitting high and when the primer is seated it should have a slight primer crush with the anvil putting a preload on the priming compound. [IMG]https://i.imgur.com/oiIRxun.jpg[/IMG] NOTE, I have a military drawing of a Lake City 7.62 case and the max distance below flush for the primer is .008. Meaning your cases with the primer .012 below flush should be thrown away. I think its the Sierra manual that tells you the primers should be seated from being flush to .004 below flush to give you a ball park idea on seating depth. Below the primers do vary in height and primer pockets can vary in depth. but this is where you go by feel and make sure the primer bottomed out with a preload on the anvil. [IMG]https://i.imgur.com/BlerqTB.png[/IMG] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Primer pocket depth
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