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Rifles, Reloading, Optics, Equipment
Reloading
So, We Figured Out Annealing. How about Primer Pocket Restoration?
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<blockquote data-quote="Pdvdh" data-source="post: 2382842" data-attributes="member: 4191"><p>You'll learn more from this Thread, than from that video:</p><p>[URL unfurl="true"]https://www.longrangehunting.com/threads/tighten-primer-pockets-heres-how.152361/[/URL]</p><p></p><p>I use a bigger hammer than the powder puff hammer shown in that video. Like Tim the Tool Man... In this case, bigger hammer is better. It still requires several hammer strikes.</p><p></p><p>I've used the method on many expanded primer pockets now. Both small PPs and large. Requires different size grade 8 bolts for different caliber cartridge casings and primer pocket sizes.</p><p></p><p>Calipers work fine for judging inside primer pocket diameters, while swaging down the primer pocket ID. I did buy a couple pin gauges, but they aren't mandatory.</p><p></p><p>I weld the ball bearing to a thick piece of steel plate to keep the ball bearing from scattering around on my garage floor after each hammer strike. I use two different size ball bearings. One for large PPs. Another for small PPs.</p><p></p><p>I use a coarse carborundum stone to flatten the edge of the primer pockets, occasionally. But based on my headspace measurements of restored casings, the ridge around the perimeter of the primer pocket generally doesn't stick out proud of the case head face. And when it does, not really enough to bother with... When the case is fired, any proud edge is flattened again, and if anything, helps tighten the primer pocket, ever so slightly.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 2382842, member: 4191"] You'll learn more from this Thread, than from that video: [URL unfurl="true"]https://www.longrangehunting.com/threads/tighten-primer-pockets-heres-how.152361/[/URL] I use a bigger hammer than the powder puff hammer shown in that video. Like Tim the Tool Man... In this case, bigger hammer is better. It still requires several hammer strikes. I've used the method on many expanded primer pockets now. Both small PPs and large. Requires different size grade 8 bolts for different caliber cartridge casings and primer pocket sizes. Calipers work fine for judging inside primer pocket diameters, while swaging down the primer pocket ID. I did buy a couple pin gauges, but they aren't mandatory. I weld the ball bearing to a thick piece of steel plate to keep the ball bearing from scattering around on my garage floor after each hammer strike. I use two different size ball bearings. One for large PPs. Another for small PPs. I use a coarse carborundum stone to flatten the edge of the primer pockets, occasionally. But based on my headspace measurements of restored casings, the ridge around the perimeter of the primer pocket generally doesn't stick out proud of the case head face. And when it does, not really enough to bother with... When the case is fired, any proud edge is flattened again, and if anything, helps tighten the primer pocket, ever so slightly. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
So, We Figured Out Annealing. How about Primer Pocket Restoration?
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