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Rifles, Reloading, Optics, Equipment
Reloading
Primer piercing but weird
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<blockquote data-quote="bigedp51" data-source="post: 1781135" data-attributes="member: 28965"><p>Try the primers with thicker .025 cups and see if you still have the same pierced primer problem.</p><p></p><p>The CCI 400 and Rem 6 1/2 with a .020 cup thickness are designed for lower pressure cartridges like the 22 Hornet. The large rifle primers with a cup thickness of .027 you were using are .007 thicker than the CCI 400 primers you are using now.</p><p></p><p>Trying the thicker primers with a .025 cup is far cheaper and faster than having your bolt bushed.</p><p></p><p>Below is a pierced CCI 400 primer that shows no signs of overpressure with a cup thickness of .020. And when the primers were switched to Rem 7 1/2 with a cup thickness of .025 the pierced primer problem was solved. </p><p></p><p><img src="https://i.imgur.com/FP14bKZ.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="bigedp51, post: 1781135, member: 28965"] Try the primers with thicker .025 cups and see if you still have the same pierced primer problem. The CCI 400 and Rem 6 1/2 with a .020 cup thickness are designed for lower pressure cartridges like the 22 Hornet. The large rifle primers with a cup thickness of .027 you were using are .007 thicker than the CCI 400 primers you are using now. Trying the thicker primers with a .025 cup is far cheaper and faster than having your bolt bushed. Below is a pierced CCI 400 primer that shows no signs of overpressure with a cup thickness of .020. And when the primers were switched to Rem 7 1/2 with a cup thickness of .025 the pierced primer problem was solved. [img]https://i.imgur.com/FP14bKZ.jpg[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Primer piercing but weird
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