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The Range
Ammo & Reloading
Case trim express, Fedex, Forster and Lee walk into a reloading room...
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<blockquote data-quote="swampratt" data-source="post: 3390551" data-attributes="member: 15054"><p>I measured shoulder ogive and found it to be different by quite a bit depending on how much lube iis used on the od and on the ID of the case and surface finish of the case also makes the ogive different if you mix a smooth case with a rough one.</p><p></p><p>All my dies pull an expander through the case neck so surface texture between cases is very important for making brass all the same.</p><p></p><p>What lube were you using? How was it applied.</p><p>Were all cases cleaned the same way?</p><p>If some were corn cob and others pin tumbled you will get different readings.</p><p></p><p>Annealing cases also helps all my cases get darn close to each other on measurements.</p><p>Try annealing and see if those numbers shrink.</p><p></p><p>Brushing case neck ID also helps in my search for perfection.</p><p>On the Lee FLS die I polish the expander to a chrome finish.</p><p>That with very slick case neck ID (brushed and thenlubed with Sizing die wax) makes numbers very small.</p><p></p><p>My press does not cam over.</p><p>Shadowrider mentioned that aspect</p></blockquote><p></p>
[QUOTE="swampratt, post: 3390551, member: 15054"] I measured shoulder ogive and found it to be different by quite a bit depending on how much lube iis used on the od and on the ID of the case and surface finish of the case also makes the ogive different if you mix a smooth case with a rough one. All my dies pull an expander through the case neck so surface texture between cases is very important for making brass all the same. What lube were you using? How was it applied. Were all cases cleaned the same way? If some were corn cob and others pin tumbled you will get different readings. Annealing cases also helps all my cases get darn close to each other on measurements. Try annealing and see if those numbers shrink. Brushing case neck ID also helps in my search for perfection. On the Lee FLS die I polish the expander to a chrome finish. That with very slick case neck ID (brushed and thenlubed with Sizing die wax) makes numbers very small. My press does not cam over. Shadowrider mentioned that aspect [/QUOTE]
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The Range
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Case trim express, Fedex, Forster and Lee walk into a reloading room...
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