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Rifles, Reloading, Optics, Equipment
7mm STW
Re-Sizing 7mm STW Brass
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<blockquote data-quote="jimbires" data-source="post: 2583432" data-attributes="member: 11011"><p>sounds like you have two problems under control . </p><p></p><p>try forming a false shoulder on your next batch of new brass . you'll only do this on the first fire . this should help with the first fire stretch . </p><p>[URL unfurl="true"]https://forum.nosler.com/threads/forming-a-false-shoulder.43012/#post-472361[/URL]</p><p></p><p></p><p>then try neck sizing until your brass gets tight , then set up your full length die on that brass . if you don't have a neck die , you can back off the full length die between 1/8 - 1/4 turn . this should allow the case to grow until it's tight to chamber . </p><p></p><p>here's a write up from Peterson brass on the reasons behind them making 300 win long brass . </p><p>[URL unfurl="true"]https://www.petersoncartridge.com/match-grade-brass/brass-rifle-casings/300-win-mag-long/[/URL]</p></blockquote><p></p>
[QUOTE="jimbires, post: 2583432, member: 11011"] sounds like you have two problems under control . try forming a false shoulder on your next batch of new brass . you'll only do this on the first fire . this should help with the first fire stretch . [URL unfurl="true"]https://forum.nosler.com/threads/forming-a-false-shoulder.43012/#post-472361[/URL] then try neck sizing until your brass gets tight , then set up your full length die on that brass . if you don't have a neck die , you can back off the full length die between 1/8 - 1/4 turn . this should allow the case to grow until it's tight to chamber . here's a write up from Peterson brass on the reasons behind them making 300 win long brass . [URL unfurl="true"]https://www.petersoncartridge.com/match-grade-brass/brass-rifle-casings/300-win-mag-long/[/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
7mm STW
Re-Sizing 7mm STW Brass
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