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Rifles, Reloading, Optics, Equipment
Reloading
Primer piercing but weird
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<blockquote data-quote="bigedp51" data-source="post: 1780283" data-attributes="member: 28965"><p>Below CCI 400 fired in a AR15 rifle, Look at the chart above posted by cohunt in post #2.</p><p></p><p><img src="https://i.imgur.com/FP14bKZ.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>You need primers with a cup thickness of .025 to prevent the pierced primers.</p><p></p><p>NOTE, pistol primers have a cup thickness of .017 to .020 and the CCI 400 primers have a .020 cup and are for lower pressure cartridges. (see below)</p><p></p><p><strong>CHOOSING THE RIGHT PRIMER - A PRIMER ON PRIMERS</strong></p><p><strong><a href="http://www.sksboards.com/smf/index.php?topic=56422.0" target="_blank">http://www.sksboards.com/smf/index.php?topic=56422.0</a></strong></p><p><strong></strong></p><p><strong>CCI 400</strong> -thin .020" cup, not recommended for AR15 use by CCI/Speer. Good for .22 Hornet, .30 Carbine. See Note 1 at the bottom of the page.</p><p></p><p><strong>NOTE 1:</strong> According to Speer/CCI Technical Services - Both the CCI 550 Small Pistol Magnum and CCI 400 Small Rifle primers are identical in size. Both primers use the same cup metal and share the same cup thickness. Both primers use the same primer compound formula and same amount of primer compound. They can be used interchangeably.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1780283, member: 28965"] Below CCI 400 fired in a AR15 rifle, Look at the chart above posted by cohunt in post #2. [img]https://i.imgur.com/FP14bKZ.jpg[/img] You need primers with a cup thickness of .025 to prevent the pierced primers. NOTE, pistol primers have a cup thickness of .017 to .020 and the CCI 400 primers have a .020 cup and are for lower pressure cartridges. (see below) [B]CHOOSING THE RIGHT PRIMER - A PRIMER ON PRIMERS [URL]http://www.sksboards.com/smf/index.php?topic=56422.0[/URL] CCI 400[/B] -thin .020" cup, not recommended for AR15 use by CCI/Speer. Good for .22 Hornet, .30 Carbine. See Note 1 at the bottom of the page. [B]NOTE 1:[/B] According to Speer/CCI Technical Services - Both the CCI 550 Small Pistol Magnum and CCI 400 Small Rifle primers are identical in size. Both primers use the same cup metal and share the same cup thickness. Both primers use the same primer compound formula and same amount of primer compound. They can be used interchangeably. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Primer piercing but weird
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