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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity:How much ?
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<blockquote data-quote="J E Custom" data-source="post: 360132" data-attributes="member: 2736"><p>Very good comments so far and more to come "I HOPE".</p><p></p><p>Sounds like I am not to far off but Wanted to know if I could Improve some more or</p><p>not.</p><p></p><p>The way I have found that works the best for me "SO FAR". is=</p><p></p><p>First I true the necks for turning with a carbide mandrel.</p><p></p><p>Then I turn the necks to the desired thickness.</p><p></p><p>Next I full length size by starting and relaxing to allow the case to shift if it needs to</p><p>and then trim to length,(I found that if I neck turn first the dies don't push the </p><p>necks off center as bad because they are the same thickness all around) .</p><p></p><p>Then I weight sort the brass in batches and indicate the brass for neck run out .If it goes </p><p>beyond .001 then I set it aside and go through a resizing process or just load them to fire </p><p>form them (With a good chamber they will be near perfect).</p><p></p><p>After the ones that were .001 or less are loaded ( I use the same method of turning the </p><p>round after starting the bullet).</p><p></p><p>This is when I check for total indicated run out at the bullet ojive while restraining the bullet </p><p>tip and case head.</p><p></p><p>If This is the wrong way to do it please feel free to tell a better way !!!!!</p><p></p><p>At present I can get TIR from .0002 to .0005 most of the time and if some are .001 I will </p><p>separate them from the rest and test them separately but can't tell if it makes a difference</p><p>because of my ability as a shooter. I can say that the rounds that were .003+ do not shoot as well and SDs are not as good.</p><p></p><p>Thanks to everyone that has posted and keep'em coming.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 360132, member: 2736"] Very good comments so far and more to come "I HOPE". Sounds like I am not to far off but Wanted to know if I could Improve some more or not. The way I have found that works the best for me "SO FAR". is= First I true the necks for turning with a carbide mandrel. Then I turn the necks to the desired thickness. Next I full length size by starting and relaxing to allow the case to shift if it needs to and then trim to length,(I found that if I neck turn first the dies don't push the necks off center as bad because they are the same thickness all around) . Then I weight sort the brass in batches and indicate the brass for neck run out .If it goes beyond .001 then I set it aside and go through a resizing process or just load them to fire form them (With a good chamber they will be near perfect). After the ones that were .001 or less are loaded ( I use the same method of turning the round after starting the bullet). This is when I check for total indicated run out at the bullet ojive while restraining the bullet tip and case head. If This is the wrong way to do it please feel free to tell a better way !!!!! At present I can get TIR from .0002 to .0005 most of the time and if some are .001 I will separate them from the rest and test them separately but can't tell if it makes a difference because of my ability as a shooter. I can say that the rounds that were .003+ do not shoot as well and SDs are not as good. Thanks to everyone that has posted and keep'em coming. J E CUSTOM [/QUOTE]
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Concentricity:How much ?
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