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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning your Brass
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<blockquote data-quote="J E Custom" data-source="post: 1438995" data-attributes="member: 2736"><p>The main reason I turn the necks ,is concentricity. I like to turn the necks before it has been fired the first time. I prefer the Sinclair neck turner because it pre sizes the ID of the neck with a sizing mandrel first to fit the turning mandrel perfectly assuring that the neck wall is a very consistent thickness. Then when fired in a concentric chamber, (Custom) the case remains concentric when sized properly. (If the neck wall thickness varies, firing it in a concentric chamber will offset the ID of the neck by the thickness difference). </p><p></p><p>I try to find the best brass possible and even though it may measure only a half thousandths difference, I still turn it so all cases will have the same wall thickness. This gives me the best chance of loading concentric ammo. And true concentric ammo always shoots more accurately that ammo that is not concentric.</p><p></p><p>Of course, in poor chambers with low quality brass it may not make enough difference to be worth the effort, but it can't hurt. so start true and finish true. Even though the necks may thin over time and firings, </p><p>it will remain consistent and concentric through it's life.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1438995, member: 2736"] The main reason I turn the necks ,is concentricity. I like to turn the necks before it has been fired the first time. I prefer the Sinclair neck turner because it pre sizes the ID of the neck with a sizing mandrel first to fit the turning mandrel perfectly assuring that the neck wall is a very consistent thickness. Then when fired in a concentric chamber, (Custom) the case remains concentric when sized properly. (If the neck wall thickness varies, firing it in a concentric chamber will offset the ID of the neck by the thickness difference). I try to find the best brass possible and even though it may measure only a half thousandths difference, I still turn it so all cases will have the same wall thickness. This gives me the best chance of loading concentric ammo. And true concentric ammo always shoots more accurately that ammo that is not concentric. Of course, in poor chambers with low quality brass it may not make enough difference to be worth the effort, but it can't hurt. so start true and finish true. Even though the necks may thin over time and firings, it will remain consistent and concentric through it's life. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning your Brass
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