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Rifles, Reloading, Optics, Equipment
Reloading
Peterson Brass Article - New Caliber Development
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<blockquote data-quote="QuietTexan" data-source="post: 2559862" data-attributes="member: 116181"><p>I use a K+M cutter with the angle matched to the cartridge and don't bother setting the stop point off the case mouth. To me it's very obvious when the shoulder is finished getting cut, I got very consistent neck thickness, no donuts, and no neck separations. I ran one case through my 243 AI 12 times in a row - 1 fireforming load then 10 progressively higher charge loads, no dimensional issues I could measure on the case from cutting necks this way, and the charge ladder shot a sub-MOA group at 100 yards. I figure if a max load on the 12th firing of a case doesn't pop the neck off I didn't cut too deep into the shoulder, because if all my cases last 10+ firings my barrel will for sure be dead at that point.</p><p></p><p>Basically what this guy does in the "Dreaded Donut" section but I don't cut on a drill press. I use a Skil electric screwdriver or a crazy electric motor/ CV controller I cobbled together.</p><p>[URL unfurl="true"]http://coyotestuff.com/case-neck-turning-step-by-step/[/URL]</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2559862, member: 116181"] I use a K+M cutter with the angle matched to the cartridge and don't bother setting the stop point off the case mouth. To me it's very obvious when the shoulder is finished getting cut, I got very consistent neck thickness, no donuts, and no neck separations. I ran one case through my 243 AI 12 times in a row - 1 fireforming load then 10 progressively higher charge loads, no dimensional issues I could measure on the case from cutting necks this way, and the charge ladder shot a sub-MOA group at 100 yards. I figure if a max load on the 12th firing of a case doesn't pop the neck off I didn't cut too deep into the shoulder, because if all my cases last 10+ firings my barrel will for sure be dead at that point. Basically what this guy does in the "Dreaded Donut" section but I don't cut on a drill press. I use a Skil electric screwdriver or a crazy electric motor/ CV controller I cobbled together. [URL unfurl="true"]http://coyotestuff.com/case-neck-turning-step-by-step/[/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Peterson Brass Article - New Caliber Development
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