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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
necking down 7saum to 6.5 gap
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<blockquote data-quote="Mikecr" data-source="post: 1478977" data-attributes="member: 1521"><p>Shoulder brass enters necks when FL sizing, lengthening necks with forming, or when necking <u>up</u> a cal. Necking down, in itself, does not do this.</p><p></p><p>Also, I've found it easier to turn necks only with new/unsized cases.</p><p>So in this plan you separate a few cases with flaws, like excess thickness variance, or differing in weight. Neck down a case as planned and measure resulting thickness.</p><p>Now if you need to reduce thickness, turn the separated/still unsized cases +/- a schmidge, and then neck them down. Verify that one of the trial & error turned settings comes out to intended thickness after sizing.</p><p>Now you know what to turn all new cases to -before any sizing.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1478977, member: 1521"] Shoulder brass enters necks when FL sizing, lengthening necks with forming, or when necking [U]up[/U] a cal. Necking down, in itself, does not do this. Also, I've found it easier to turn necks only with new/unsized cases. So in this plan you separate a few cases with flaws, like excess thickness variance, or differing in weight. Neck down a case as planned and measure resulting thickness. Now if you need to reduce thickness, turn the separated/still unsized cases +/- a schmidge, and then neck them down. Verify that one of the trial & error turned settings comes out to intended thickness after sizing. Now you know what to turn all new cases to -before any sizing. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
necking down 7saum to 6.5 gap
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