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Rifles, Reloading, Optics, Equipment
Reloading
Lee factory crimp die
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<blockquote data-quote="Hugnot" data-source="post: 2831827" data-attributes="member: 115658"><p>I crimp bullets but use a minimum crimp. I avoid making a deep ring on bullets. My thinking is to avoid displacing bullet core, creating an imbalanced situation where bullet radii measured at crimp is variable. Bullet makers agonize on jacket uniformity & deep crimp rings might make for an imbalanced situation magnified by high RPM's.</p><p></p><p>The OP's groups sort of support this - "1/16 turn"</p><p></p><p>The Lee crimp die can squash bullets easily.</p><p></p><p>Edit:</p><p>Extensive & hard Lee Factory crimping might affect solid copper bullet roundness. OP - "But most certainly something is going on."</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2831827, member: 115658"] I crimp bullets but use a minimum crimp. I avoid making a deep ring on bullets. My thinking is to avoid displacing bullet core, creating an imbalanced situation where bullet radii measured at crimp is variable. Bullet makers agonize on jacket uniformity & deep crimp rings might make for an imbalanced situation magnified by high RPM's. The OP's groups sort of support this - "1/16 turn" The Lee crimp die can squash bullets easily. Edit: Extensive & hard Lee Factory crimping might affect solid copper bullet roundness. OP - "But most certainly something is going on." [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Lee factory crimp die
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