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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity..Issues or me?
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<blockquote data-quote="RDM416" data-source="post: 469377" data-attributes="member: 3745"><p>+1 on this. I go a little further though. When sizing I will lift the ram just enough to free the case and rotate the case about 1/4 turn 4 or 5 times bringing the ram back down each time. I do the same for seating a bullet. </p><p></p><p>I have proved this works many times by measuring runout on rounds I loaded with this method and rounds loaded with one sizing and seating stroke. Using this method I get my rounds ALL within .003 with the vast majority .001 or less. If I occasionally get a .004 I can usually put it back in the seater and bring the ram down 8 or 10 times rotating it just a little each time and bring it to .003 or less. This is with a long 338 Khan, shorter cases should work even better. </p><p></p><p>One other thing is I do not use an expander ball. They tend to put stress on the neck / shoulder when pulled out.</p></blockquote><p></p>
[QUOTE="RDM416, post: 469377, member: 3745"] +1 on this. I go a little further though. When sizing I will lift the ram just enough to free the case and rotate the case about 1/4 turn 4 or 5 times bringing the ram back down each time. I do the same for seating a bullet. I have proved this works many times by measuring runout on rounds I loaded with this method and rounds loaded with one sizing and seating stroke. Using this method I get my rounds ALL within .003 with the vast majority .001 or less. If I occasionally get a .004 I can usually put it back in the seater and bring the ram down 8 or 10 times rotating it just a little each time and bring it to .003 or less. This is with a long 338 Khan, shorter cases should work even better. One other thing is I do not use an expander ball. They tend to put stress on the neck / shoulder when pulled out. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity..Issues or me?
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