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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity..Issues or me?
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<blockquote data-quote="Gene" data-source="post: 469362" data-attributes="member: 7402"><p>Neck consistency is a bugaboo for many of us. I can accept .003" or less. If more than that, I cull out the excesses and use them for sighters. </p><p></p><p>First of all, brass must be fired once or twice to fit the chamber. Good bushing type sizer and micrometer seater dies are a must. The seater die ogive cup must be deep enough so that the meplats do not touch. I put a touch of Prussian blue on a bullet tip to find out whether there is contact. Necks must be first turned. Even sizer bushings can be faulty. Try this: Size the case once, then turn it 180 degrees in the shell holder and size it again. Do same with the seater; lower the bullet about 70%, turn in the shell holder and lower it to desired OAL. Theory is that increases consistency all around. I have no way to prove this theory.</p></blockquote><p></p>
[QUOTE="Gene, post: 469362, member: 7402"] Neck consistency is a bugaboo for many of us. I can accept .003" or less. If more than that, I cull out the excesses and use them for sighters. First of all, brass must be fired once or twice to fit the chamber. Good bushing type sizer and micrometer seater dies are a must. The seater die ogive cup must be deep enough so that the meplats do not touch. I put a touch of Prussian blue on a bullet tip to find out whether there is contact. Necks must be first turned. Even sizer bushings can be faulty. Try this: Size the case once, then turn it 180 degrees in the shell holder and size it again. Do same with the seater; lower the bullet about 70%, turn in the shell holder and lower it to desired OAL. Theory is that increases consistency all around. I have no way to prove this theory. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity..Issues or me?
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