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Rifles, Reloading, Optics, Equipment
Reloading
How do you eliminate runout
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<blockquote data-quote="kiwikid" data-source="post: 1913431" data-attributes="member: 56094"><p>Hi Brett, how many thou OD difference between your fired cases and your sized cases?</p><p> </p><p>I had a similar issue with a 6.5x55mm load using Redding neck bushing dies. The fired cases measure .299" and I have to size them down to .291" to get .002" of neck tension. My fired case have <.001" of run out but after resizing this has increased to .002-.003". </p><p>Redding suggest that if the necks have to be reduced by more than .005" then it should be done in steps. In my case I bought a .295" bush and run all the cases through that first and then swap for the .291" bush and run them through again. </p><p>By doing it in two steps my run out has stayed at the <.001" that they came out of the rifle with.</p></blockquote><p></p>
[QUOTE="kiwikid, post: 1913431, member: 56094"] Hi Brett, how many thou OD difference between your fired cases and your sized cases? I had a similar issue with a 6.5x55mm load using Redding neck bushing dies. The fired cases measure .299" and I have to size them down to .291" to get .002" of neck tension. My fired case have <.001" of run out but after resizing this has increased to .002-.003". Redding suggest that if the necks have to be reduced by more than .005" then it should be done in steps. In my case I bought a .295" bush and run all the cases through that first and then swap for the .291" bush and run them through again. By doing it in two steps my run out has stayed at the <.001" that they came out of the rifle with. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How do you eliminate runout
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