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Rifles, Reloading, Optics, Equipment
Reloading
TIGHTEN PRIMER POCKETS, here's how.
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<blockquote data-quote="Pdvdh" data-source="post: 1511207" data-attributes="member: 4191"><p>Just seated he primers in 43 .223 Rem cases. Sweeeeet!</p><p></p><p>I don't know why the clear difference between these restored small rifle primer pockets versus the large rifle primer pockets. But my small rifle primers seated as if they were going into brand new cases. I use a K&M Services hand priming tool, so it's pretty easy to feel the primer resistance as the primer is seated. </p><p></p><p>There's a nice steady continuous force, all the way down until the small rifle primer is fuller seated. Just the same as when primers are seated in a new case.</p><p></p><p>With large rifle primer pockets restored using this ball bearing and hammer method, the force to seat the primer is greater as the primer first enters the pocket, and then as the primer is seated in deeper, there's less force/resistance. That's because the primer pocket ID at the case head is reduced more so than it is deeper down into the primer pocket.</p><p></p><p>I don't know why the big difference. Small rifle primers are a little shorter than large rifle primers. And of course, a smaller diameter also. Perhaps with the shallower primer pockets, sidewalls are reduced in ID down deeper into the pockets? Or when the bolt head is hammered down on the top of the flash hole, maybe the smaller perimeter distance around the small rifle primer pocket lends itself to sizing down more fully or easily. </p><p></p><p>Whatever. These tightened .223 Rem primer pockets seem to be <u>restored to <em>'as new' </em>condition</u>. I was very pleasantly surprised.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 1511207, member: 4191"] Just seated he primers in 43 .223 Rem cases. Sweeeeet! I don't know why the clear difference between these restored small rifle primer pockets versus the large rifle primer pockets. But my small rifle primers seated as if they were going into brand new cases. I use a K&M Services hand priming tool, so it's pretty easy to feel the primer resistance as the primer is seated. There's a nice steady continuous force, all the way down until the small rifle primer is fuller seated. Just the same as when primers are seated in a new case. With large rifle primer pockets restored using this ball bearing and hammer method, the force to seat the primer is greater as the primer first enters the pocket, and then as the primer is seated in deeper, there's less force/resistance. That's because the primer pocket ID at the case head is reduced more so than it is deeper down into the primer pocket. I don't know why the big difference. Small rifle primers are a little shorter than large rifle primers. And of course, a smaller diameter also. Perhaps with the shallower primer pockets, sidewalls are reduced in ID down deeper into the pockets? Or when the bolt head is hammered down on the top of the flash hole, maybe the smaller perimeter distance around the small rifle primer pocket lends itself to sizing down more fully or easily. Whatever. These tightened .223 Rem primer pockets seem to be [U]restored to [I]'as new' [/I]condition[/U]. I was very pleasantly surprised. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
TIGHTEN PRIMER POCKETS, here's how.
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