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Rifles, Reloading, Optics, Equipment
Reloading
First case head separation
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<blockquote data-quote="Carey Farmer" data-source="post: 2910388" data-attributes="member: 122715"><p>Thank you for your kind words, sir. I'm not qualified to teach, but am happy to explain the approach that seems to work for me.</p><p></p><p>My kids, my brother, and I all have rifles in the same chamberings, and I load for everyone in my family, so I can't just set my full-length sizing die base-to-shoulder-length adjustment collar / locking ring and forget it. Every time I'm loading for a particular rifle, I have to "find" the shoulder of a representative fired case.</p><p></p><p>I find the case shoulders by backing out the sizing die a few thousandths, and then repeatedly sizing the same (representative) case, measuring the case length and then screwing the sizing die in to the collar a thousandths or so after each sizing, until I feel some additional resistance in the press handle, or see a reduction in case length. As mentioned in my previous post, the case gets longer before it gets shorter.</p><p></p><p>After I see the die has contacted the case shoulders, I try to screw the sizing die in just a half a thousandth or so at a time, until the sized case length is the same as the fired but unsized case length. Then I use that collar setting for the whole batch of fired cases.</p><p></p><p>All the rifles I load for are within a few thousandths of the same headspace, so there's not a whole lot of trial and error in this process. But screwing in a thousandths is a very small adjustment, only about 1/32" movement of the collar, so it's pretty easy to overshoot.</p><p></p><p>I do re-lube the representative case every time I size it. And I don't use an expander ball, to prevent excess working of the case neck with the repeated sizing.</p></blockquote><p></p>
[QUOTE="Carey Farmer, post: 2910388, member: 122715"] Thank you for your kind words, sir. I'm not qualified to teach, but am happy to explain the approach that seems to work for me. My kids, my brother, and I all have rifles in the same chamberings, and I load for everyone in my family, so I can't just set my full-length sizing die base-to-shoulder-length adjustment collar / locking ring and forget it. Every time I'm loading for a particular rifle, I have to "find" the shoulder of a representative fired case. I find the case shoulders by backing out the sizing die a few thousandths, and then repeatedly sizing the same (representative) case, measuring the case length and then screwing the sizing die in to the collar a thousandths or so after each sizing, until I feel some additional resistance in the press handle, or see a reduction in case length. As mentioned in my previous post, the case gets longer before it gets shorter. After I see the die has contacted the case shoulders, I try to screw the sizing die in just a half a thousandth or so at a time, until the sized case length is the same as the fired but unsized case length. Then I use that collar setting for the whole batch of fired cases. All the rifles I load for are within a few thousandths of the same headspace, so there's not a whole lot of trial and error in this process. But screwing in a thousandths is a very small adjustment, only about 1/32" movement of the collar, so it's pretty easy to overshoot. I do re-lube the representative case every time I size it. And I don't use an expander ball, to prevent excess working of the case neck with the repeated sizing. [/QUOTE]
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First case head separation
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