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Rifles, Reloading, Optics, Equipment
Reloading
Help! Case neck runout...bent decapping rod?
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<blockquote data-quote="Broz" data-source="post: 551196" data-attributes="member: 7503"><p>Here is my experience over many years of reloading with many die types.</p><p> </p><p>All expander balls have induced runout for me. However if the die is custom ground for your brass to only down size a limited ammount it will be better. Or you can simply adjust this with a bushing die by selecting the proper bushing. Also the option of not using an expander at all is a good choice the bushing die will allow.</p><p> </p><p>With the Lee collet dies I have used I had problems getting enough neck tension. This was an issue even after many attempts to get it properly adjusted. Maybe I needed a smaller inside mandrel but I could not get a good feeling about the vertical creases the Lee collet leaves on my case necks so I went to the bushing dies and have found them to be awesome. </p><p> </p><p>I size in two steps. First the necks where I get consistant neck tension of .002" Then I use a body die that alows me to size the body and only bump the shoulde back about .0015" </p><p> </p><p>The result is very consistant cases both in neck tension and with all the shoulders at the same place. Which allows for very consistant bolt closure and opening after firing even in warmer weather. </p><p> </p><p>My total indicated runout of a loaded round, checked at the o-give of the bullet, averages .0005" to .001" and more are to the lesser side of that.</p><p> </p><p>Many ways to skin a cat, but this is working well for me and my ES and ELR groups are as tight as I have ever had.</p><p> </p><p>Jeff</p></blockquote><p></p>
[QUOTE="Broz, post: 551196, member: 7503"] Here is my experience over many years of reloading with many die types. All expander balls have induced runout for me. However if the die is custom ground for your brass to only down size a limited ammount it will be better. Or you can simply adjust this with a bushing die by selecting the proper bushing. Also the option of not using an expander at all is a good choice the bushing die will allow. With the Lee collet dies I have used I had problems getting enough neck tension. This was an issue even after many attempts to get it properly adjusted. Maybe I needed a smaller inside mandrel but I could not get a good feeling about the vertical creases the Lee collet leaves on my case necks so I went to the bushing dies and have found them to be awesome. I size in two steps. First the necks where I get consistant neck tension of .002" Then I use a body die that alows me to size the body and only bump the shoulde back about .0015" The result is very consistant cases both in neck tension and with all the shoulders at the same place. Which allows for very consistant bolt closure and opening after firing even in warmer weather. My total indicated runout of a loaded round, checked at the o-give of the bullet, averages .0005" to .001" and more are to the lesser side of that. Many ways to skin a cat, but this is working well for me and my ES and ELR groups are as tight as I have ever had. Jeff [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Help! Case neck runout...bent decapping rod?
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