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Rifles, Reloading, Optics, Equipment
Reloading
High extreme spread
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<blockquote data-quote="Gene" data-source="post: 852141" data-attributes="member: 7402"><p>Anything that relates to pressure differences, can explain high ES and/or SD . Neck tension is most important, then OAL. I would throw away the expander ball, get a bushing die, and three bushings to experiment, starting about .003" less than loaded round diameter. Then you also need a bullet comparator. You can find all of these in the Sinclair catalog or web site. </p><p></p><p>Expander balls pull the neck erratically and are often the sole cause. And your accuracy seems pretty good. Forget about the ES and look at consistent group size.</p></blockquote><p></p>
[QUOTE="Gene, post: 852141, member: 7402"] Anything that relates to pressure differences, can explain high ES and/or SD . Neck tension is most important, then OAL. I would throw away the expander ball, get a bushing die, and three bushings to experiment, starting about .003" less than loaded round diameter. Then you also need a bullet comparator. You can find all of these in the Sinclair catalog or web site. Expander balls pull the neck erratically and are often the sole cause. And your accuracy seems pretty good. Forget about the ES and look at consistent group size. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
High extreme spread
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