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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity/Neck Turning/Culling Cases:
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<blockquote data-quote="Comancheria" data-source="post: 1644480" data-attributes="member: 110141"><p>Folks,</p><p></p><p>I tried my best to research this question on the reloading page, but was unsuccessful in finding the answers to my specific question:</p><p></p><p>I have all the precision loading tools you could hope for. I will soon be reloading for .300 Win Mag and .300 RUM, using Berger Bullets.</p><p></p><p>I have a new inventory of 300 Remington cases in .300 RUM and 100 cases in the Winnie. I will soon be the proud owner of 300 rounds of Berger factory bullets--which, when shot, will be a source of what I suspect will be excellent cases for the future. I realize the Remington cases are not everyone's favorite.</p><p></p><p>My question is as follows: I have the Sinclair Case Sorting Tool and the Sinclair Concentricity Tool, each with its own dial indicator--as well as the Sinclair Case Turning Tool. It is my understanding (please correct me if I am wrong!) that I can use the Concentricity Tool to determine (1) Bullet runout on reloaded OR factory ammo, AND (2) neck concentricity with case, measured at the neck, either fired or re-sized). It is also my understanding that I can use the sorting tool to measure neck thickness for consistency.</p><p></p><p>So, OK--I am sitting down at my bench with say, 100 new cases in front of me. I measure them on both tools:</p><p></p><p>(1) At what point in non-concentricity of neck to body should I cull the case? Or should I resize the case no matter how out of whack it is, and remeasure?</p><p></p><p>(2) Same question with regard to inconsistency in neck thickness? Is there a recommended difference in thousandths at which one should give up on the case?</p><p></p><p>(3) I hear about "banana cases" and how they should be culled. I think the whole concept with which I am struggling here is this: How do you know when you have a non-salvageable case?</p><p></p><p>(4) With regards to neck turning, I realize that some people think is stupid EVER to turn and some who do it religiously. Question is: If you do turn case necks, after running an expander through the necks, how many thousandths out-of even</p><p></p><p>Thanks as always for your advice--sorry that it is such a one-way street! </p><p></p><p>Best regards,</p><p></p><p>Russ</p></blockquote><p></p>
[QUOTE="Comancheria, post: 1644480, member: 110141"] Folks, I tried my best to research this question on the reloading page, but was unsuccessful in finding the answers to my specific question: I have all the precision loading tools you could hope for. I will soon be reloading for .300 Win Mag and .300 RUM, using Berger Bullets. I have a new inventory of 300 Remington cases in .300 RUM and 100 cases in the Winnie. I will soon be the proud owner of 300 rounds of Berger factory bullets--which, when shot, will be a source of what I suspect will be excellent cases for the future. I realize the Remington cases are not everyone's favorite. My question is as follows: I have the Sinclair Case Sorting Tool and the Sinclair Concentricity Tool, each with its own dial indicator--as well as the Sinclair Case Turning Tool. It is my understanding (please correct me if I am wrong!) that I can use the Concentricity Tool to determine (1) Bullet runout on reloaded OR factory ammo, AND (2) neck concentricity with case, measured at the neck, either fired or re-sized). It is also my understanding that I can use the sorting tool to measure neck thickness for consistency. So, OK--I am sitting down at my bench with say, 100 new cases in front of me. I measure them on both tools: (1) At what point in non-concentricity of neck to body should I cull the case? Or should I resize the case no matter how out of whack it is, and remeasure? (2) Same question with regard to inconsistency in neck thickness? Is there a recommended difference in thousandths at which one should give up on the case? (3) I hear about "banana cases" and how they should be culled. I think the whole concept with which I am struggling here is this: How do you know when you have a non-salvageable case? (4) With regards to neck turning, I realize that some people think is stupid EVER to turn and some who do it religiously. Question is: If you do turn case necks, after running an expander through the necks, how many thousandths out-of even Thanks as always for your advice--sorry that it is such a one-way street! Best regards, Russ [/QUOTE]
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