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Rifles, Reloading, Optics, Equipment
Reloading
When to turn
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<blockquote data-quote="boomtube" data-source="post: 261466" data-attributes="member: 9215"><p>"...K&M make an arbour press with a pressure indicator. I am convinced that these variations are due to inner none concentric case necks.."</p><p> </p><p>Good thinking and you are quite right, so far as it goes. Unfortunately, other problems come into play too. </p><p> </p><p>Consider that our brass is a mixture, not a compound. That means the alloy can - will - vary a little bit from one place to another in the same case! </p><p> </p><p>Working the metal (necks) with firing and resizing also work hardens it, producing variations between supposedly identical cases! </p><p> </p><p>Both of those factors makes it harder to qualify what is causing any neck seating tension/pressure variations we may measure with a scale. </p><p> -----------------------------------------------</p><p>ARRRRGGGH! This reloading stuff is much like a watermellon seed! It's awfully hard to get a firm grip on anything well enough that it can't squirt out! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="boomtube, post: 261466, member: 9215"] "...K&M make an arbour press with a pressure indicator. I am convinced that these variations are due to inner none concentric case necks.." Good thinking and you are quite right, so far as it goes. Unfortunately, other problems come into play too. Consider that our brass is a mixture, not a compound. That means the alloy can - will - vary a little bit from one place to another in the same case! Working the metal (necks) with firing and resizing also work hardens it, producing variations between supposedly identical cases! Both of those factors makes it harder to qualify what is causing any neck seating tension/pressure variations we may measure with a scale. ----------------------------------------------- ARRRRGGGH! This reloading stuff is much like a watermellon seed! It's awfully hard to get a firm grip on anything well enough that it can't squirt out! :D [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
When to turn
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