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Rifles, Reloading, Optics, Equipment
Reloading
212 ELD-X 300 Win Mag Powder Crunch
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<blockquote data-quote="DMP25-06" data-source="post: 1720497" data-attributes="member: 27271"><p>Waveslayer and other members that do much more precision reloading than I do ,</p><p></p><p>If all new cartridges , and new brass are manufactured to SAAMI specifications , then why would once fired new brass that is full-length , full body-sized have more internal capacity than new brass ? If I understand correctly , the full-length sizing die , or full-body sizing die ( Redding ), is supposed to return the brass to factory ( SAAMI ) size specifications . </p><p>I know that fired brass that is neck-sized only will have more capacity than new brass due to expansion to the chamber that it is fired in . But , I have always wondered why brass that has been fired once or multiple times , and is then full-length or full-body sized back to factory SAAMI specifications should have a larger capacity than virgin brass ?</p><p>Does the new brass , on the first firing undergo a change in metallurgy , due to the extreme heat , that causes the molecular structure of the brass to re-arrange , thereby creating a thinner case wall and larger internal capacity ?</p><p></p><p>As the old TV commercial used to say , " Inquiring minds want to know ."</p><p></p><p>Thank you all , </p><p>DMP25-06</p></blockquote><p></p>
[QUOTE="DMP25-06, post: 1720497, member: 27271"] Waveslayer and other members that do much more precision reloading than I do , If all new cartridges , and new brass are manufactured to SAAMI specifications , then why would once fired new brass that is full-length , full body-sized have more internal capacity than new brass ? If I understand correctly , the full-length sizing die , or full-body sizing die ( Redding ), is supposed to return the brass to factory ( SAAMI ) size specifications . I know that fired brass that is neck-sized only will have more capacity than new brass due to expansion to the chamber that it is fired in . But , I have always wondered why brass that has been fired once or multiple times , and is then full-length or full-body sized back to factory SAAMI specifications should have a larger capacity than virgin brass ? Does the new brass , on the first firing undergo a change in metallurgy , due to the extreme heat , that causes the molecular structure of the brass to re-arrange , thereby creating a thinner case wall and larger internal capacity ? As the old TV commercial used to say , " Inquiring minds want to know ." Thank you all , DMP25-06 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
212 ELD-X 300 Win Mag Powder Crunch
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