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Hunting
Long Range Hunting & Shooting
Why excessive runout on some rounds?
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<blockquote data-quote="emp1953" data-source="post: 2644623" data-attributes="member: 71817"><p>I suffered through a smilar problem using a RCBS rock chucker single stage press. After much hair pulling I found that my .243's had no runout problem but my .270win did. I was changing out the shell holder everytime I changed die caliber. I used the shell holder a #3 for the .243 with the .270win dies and lost my runout problems. The #3 that I had been using for the .270's was ancient, used since 1969. Had worn some and it would suffer from a grain or two of powder getting on the case head bearing surface. The newer #3 would not let the shell into the shell holder. The older one would allow it, thus causing a "cant" in the case and giving me a rounout problem. Sometimes it's just the little things.</p></blockquote><p></p>
[QUOTE="emp1953, post: 2644623, member: 71817"] I suffered through a smilar problem using a RCBS rock chucker single stage press. After much hair pulling I found that my .243's had no runout problem but my .270win did. I was changing out the shell holder everytime I changed die caliber. I used the shell holder a #3 for the .243 with the .270win dies and lost my runout problems. The #3 that I had been using for the .270's was ancient, used since 1969. Had worn some and it would suffer from a grain or two of powder getting on the case head bearing surface. The newer #3 would not let the shell into the shell holder. The older one would allow it, thus causing a "cant" in the case and giving me a rounout problem. Sometimes it's just the little things. [/QUOTE]
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Why excessive runout on some rounds?
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