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Rifles, Reloading, Optics, Equipment
Reloading
Brass Trim Length Question
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<blockquote data-quote="aushunter1" data-source="post: 1798615" data-attributes="member: 57533"><p>More often than not after shooting new brass the case length shrinks slightly as brass is pushed to chamber size, so if you trim to length now it will be even shorter!</p><p></p><p>Also on FL sizing, this will elongate the brass until it hits the bump back area of the die to on the Datum case.</p><p></p><p>The only thing </p><p></p><p>I usually use fired factory cases to get my headspace measurements so I can then set up my die correctly. I presume you have some fired cases?</p></blockquote><p></p>
[QUOTE="aushunter1, post: 1798615, member: 57533"] More often than not after shooting new brass the case length shrinks slightly as brass is pushed to chamber size, so if you trim to length now it will be even shorter! Also on FL sizing, this will elongate the brass until it hits the bump back area of the die to on the Datum case. The only thing I usually use fired factory cases to get my headspace measurements so I can then set up my die correctly. I presume you have some fired cases? [/QUOTE]
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Brass Trim Length Question
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