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Rifles, Reloading, Optics, Equipment
Reloading
long range precision reloading
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<blockquote data-quote="MagnumManiac" data-source="post: 1158410" data-attributes="member: 10755"><p>What ge said.</p><p>I will add, the best seater dies I have ever used are Forster comp micrometer seaters, runout with mine never goes above .002".</p><p>I ran some tests years ago with runout numbers starting at .002" and running .002" increments to .008". I could not find any difference in group size at 600yrds, at 1000yrds, the dispersion was triangular, whether this was caused by the runout or not, I'm unsure, but, I never saw triangular dispersion before or since.</p><p>If you are wanting precision, there are some fundamentals you need to do on case prep.</p><p>First, de-burr and uniform the flash holes, measure case neck thickness and turn to get them uniform, measure case VOLUME and sort them. Only use enough neck tension to hold the bullet from moving. In all my comp rifles I run absolutely no more than .0015", even less in my 264WM.</p><p></p><p>Cheers.</p><p>gun)</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1158410, member: 10755"] What ge said. I will add, the best seater dies I have ever used are Forster comp micrometer seaters, runout with mine never goes above .002". I ran some tests years ago with runout numbers starting at .002" and running .002" increments to .008". I could not find any difference in group size at 600yrds, at 1000yrds, the dispersion was triangular, whether this was caused by the runout or not, I'm unsure, but, I never saw triangular dispersion before or since. If you are wanting precision, there are some fundamentals you need to do on case prep. First, de-burr and uniform the flash holes, measure case neck thickness and turn to get them uniform, measure case VOLUME and sort them. Only use enough neck tension to hold the bullet from moving. In all my comp rifles I run absolutely no more than .0015", even less in my 264WM. Cheers. gun) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
long range precision reloading
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