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Rifles, Reloading, Optics, Equipment
Gunsmithing
300 Win Mag Headspace Gauge
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<blockquote data-quote="pavementends" data-source="post: 2843800" data-attributes="member: 103643"><p>Peterson makes "long" brass for 300 win and 7mm Rem brass which if I understand it is longer from the base to the shoulder to avoid the excessive case stretch on the first firing common to belted cases. I see you have identified the issue as the chamber being a bit undersized in front of the belt. </p><p>I normally just use a go gauge and then add tape to the base (measuring with a comparator) to get a no-go. Not clear on how one would use a no-go only.</p></blockquote><p></p>
[QUOTE="pavementends, post: 2843800, member: 103643"] Peterson makes "long" brass for 300 win and 7mm Rem brass which if I understand it is longer from the base to the shoulder to avoid the excessive case stretch on the first firing common to belted cases. I see you have identified the issue as the chamber being a bit undersized in front of the belt. I normally just use a go gauge and then add tape to the base (measuring with a comparator) to get a no-go. Not clear on how one would use a no-go only. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
300 Win Mag Headspace Gauge
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