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Rifles, Reloading, Optics, Equipment
Reloading
Flattened Primers
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<blockquote data-quote="Trickymissfit" data-source="post: 717197" data-attributes="member: 25383"><p>I'm assuming you were refering to the question I asked about measuring the primer pockets. Honestly, you can get a rough idea to what you have with a pair of calipers, but kinda expect the inside diameter measurment to be off a thousandth or so, but still close enough right now. You can measure the depth off the base of the caliper, and simply measure the I.D. like you would the neck I.D. I don't remember off the top of my head what they spec is for the interference fit between the primer and the I.D. should be, but I suspect a thousandth and a half to be about minimum. The depth sould be slightly deeper than the higth of a new unfired primer. I like my primers to be about four to five thousandths under the face when seated. Anything shallower, and your asking for trouble. </p><p> </p><p>Did you seat your primers by a hand tool or simply did it off the press your using? You really can get a better feel with a hand priming device, but some presses do seat primers very accurately. Also while on the subject of primer pockets, it's common for primer pockets to actually enlarge under high pressure firing. Just the nature of the beast. I have just one manual with the loading data for the cartridge, and they spec a Winchester mag primer. I prefer Federals myself. They are harder and seem to go in tighter than the others out of my primer stash. I use almost nothing but Federals and CCI's with a spattering of the others here and there (I do like the Remington Benchrest primers whenever I can find some). A change of brand in the primers might be worth the effort and a hundred primers are cheap to experiment with.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 717197, member: 25383"] I'm assuming you were refering to the question I asked about measuring the primer pockets. Honestly, you can get a rough idea to what you have with a pair of calipers, but kinda expect the inside diameter measurment to be off a thousandth or so, but still close enough right now. You can measure the depth off the base of the caliper, and simply measure the I.D. like you would the neck I.D. I don't remember off the top of my head what they spec is for the interference fit between the primer and the I.D. should be, but I suspect a thousandth and a half to be about minimum. The depth sould be slightly deeper than the higth of a new unfired primer. I like my primers to be about four to five thousandths under the face when seated. Anything shallower, and your asking for trouble. Did you seat your primers by a hand tool or simply did it off the press your using? You really can get a better feel with a hand priming device, but some presses do seat primers very accurately. Also while on the subject of primer pockets, it's common for primer pockets to actually enlarge under high pressure firing. Just the nature of the beast. I have just one manual with the loading data for the cartridge, and they spec a Winchester mag primer. I prefer Federals myself. They are harder and seem to go in tighter than the others out of my primer stash. I use almost nothing but Federals and CCI's with a spattering of the others here and there (I do like the Remington Benchrest primers whenever I can find some). A change of brand in the primers might be worth the effort and a hundred primers are cheap to experiment with. gary [/QUOTE]
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