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Rifles, Reloading, Optics, Equipment
Equipment Discussions
FEDERAL .300RUMMY brass test
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<blockquote data-quote="ricka0" data-source="post: 69259" data-attributes="member: 3086"><p>Dang, I just purchased 1,500 Remington once fired brass with the plans to sort them all by weight, run-out and neck thickness (and neck thickness consistency) using my Mitutoyo .0001 tube mic.</p><p></p><p>I agree with Bart Bobbit who writes:</p><p> [ QUOTE ]</p><p> <font color="purple"> <strong> Keep in</strong></p><p><strong>mind that uniforming case necks typically won't show any accuracy</strong></p><p><strong>improvement for factory chambers. Nor will any significant improvement</strong></p><p><strong>occur in most 'smithed chambers. The only time I've seen accuracy</strong></p><p><strong>improvement by uniforming neck wall thickness is when a top quality</strong></p><p><strong>match barrel is chambered with a top quality match reamer whose pilot</strong></p><p><strong>is a perfect fit to the bore diameter. This allows the chamber's neck</strong></p><p><strong>and throat to be perfectly centered on the bore axis. Uniforming neck</strong></p><p><strong>wall thickness definitely helps in these chambers.</strong></p><p><strong></strong></p><p><strong>Another thing about uniformed neck wall thickness is that the benefits</strong></p><p><strong>of such case preparation is typically nulled when conventional sizing</strong></p><p><strong>dies are used. The sizing die (neck or full-length) should <font color="red"> NOT use an expander ball; </font> those things bend case necks enough to mask any accuracy</strong></p><p><strong>improvement uniforming neck wall thickness might do.</strong></p><p><strong></strong></p><p><strong></strong> </font> </p><p></p><p>[/ QUOTE ] </p><p>I have two 300 RUMS so need dbl the brass. </p><p>Should I sell all my Rem Brass on eBay and get the better Brass? Even if I get the Federal brass, I'll go thru the same sorting procedure (but it should be faster and give fewer but larger batches) - so how much advantage is there to the Federal Brass? Is brass life any better? Cost is really moot because the Rem brass is only 1/3rd $ each and I plan on reloading it max 4 times.</p></blockquote><p></p>
[QUOTE="ricka0, post: 69259, member: 3086"] Dang, I just purchased 1,500 Remington once fired brass with the plans to sort them all by weight, run-out and neck thickness (and neck thickness consistency) using my Mitutoyo .0001 tube mic. I agree with Bart Bobbit who writes: [ QUOTE ] <font color="purple"> [b] Keep in mind that uniforming case necks typically won't show any accuracy improvement for factory chambers. Nor will any significant improvement occur in most 'smithed chambers. The only time I've seen accuracy improvement by uniforming neck wall thickness is when a top quality match barrel is chambered with a top quality match reamer whose pilot is a perfect fit to the bore diameter. This allows the chamber's neck and throat to be perfectly centered on the bore axis. Uniforming neck wall thickness definitely helps in these chambers. Another thing about uniformed neck wall thickness is that the benefits of such case preparation is typically nulled when conventional sizing dies are used. The sizing die (neck or full-length) should <font color="red"> NOT use an expander ball; </font> those things bend case necks enough to mask any accuracy improvement uniforming neck wall thickness might do. [/b] </font> [/ QUOTE ] I have two 300 RUMS so need dbl the brass. Should I sell all my Rem Brass on eBay and get the better Brass? Even if I get the Federal brass, I'll go thru the same sorting procedure (but it should be faster and give fewer but larger batches) - so how much advantage is there to the Federal Brass? Is brass life any better? Cost is really moot because the Rem brass is only 1/3rd $ each and I plan on reloading it max 4 times. [/QUOTE]
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FEDERAL .300RUMMY brass test
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