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Rifles, Reloading, Optics, Equipment
Reloading
Trying to Decide on Reloading press.
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<blockquote data-quote="J E Custom" data-source="post: 899209" data-attributes="member: 2736"><p>I did a test a while back on the effects of run out on accuracy and this is what I found.</p><p></p><p>Zero run out was without question the best for accuracy (Pretty obvious) I saw some slight loss</p><p>in accuracy with .001 thousandths run out. </p><p></p><p>.002 thousandths run out was measurable in accuracy loss.</p><p></p><p>.003 needed to be straightened to improve the accuracy and at .004 thousandths straightening</p><p>made them worse because it changed the neck tension.</p><p></p><p>So I use the .004 run out loads for fouling and testing. For extreme accuracy, I stay with .000 to .001 as loaded run out without straightening .</p><p></p><p>I use a .0005 dial indicator and it works ok. I may need to go with a .00010 gage. (if it didn't drive me crazy)</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 899209, member: 2736"] I did a test a while back on the effects of run out on accuracy and this is what I found. Zero run out was without question the best for accuracy (Pretty obvious) I saw some slight loss in accuracy with .001 thousandths run out. .002 thousandths run out was measurable in accuracy loss. .003 needed to be straightened to improve the accuracy and at .004 thousandths straightening made them worse because it changed the neck tension. So I use the .004 run out loads for fouling and testing. For extreme accuracy, I stay with .000 to .001 as loaded run out without straightening . I use a .0005 dial indicator and it works ok. I may need to go with a .00010 gage. (if it didn't drive me crazy) J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Trying to Decide on Reloading press.
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