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Rifles, Reloading, Optics, Equipment
Reloading
Reloading is so hard!
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<blockquote data-quote="Mikecr" data-source="post: 1190177" data-attributes="member: 1521"><p>bigedp51's bottom picture shows why a true FL die cannot be used well for partial neck sizing.</p><p>And you don't need to size the full length of necks unless you actually want extreme neck tension(including donut added grip).</p><p>This is somewhat mitigated with use of bushing-body dies, which are also merchandised as FL dies today, but they're not.</p><p>Better still is separate body sizing(with a body die) and separate partial neck sizing (with a bushing neck sizer die).</p><p>And the best available option is separate body sizing with a custom body die(fit to your chamber formed cases), and separate bushing partial neck downsizing, and separate mandrel neck expansion (with an expander die).</p><p></p><p>But no matter what you choose for sizing, it's success is tied to the baseline cartridge your chamber produces. A fully fire-formed, dimension stable cartridge.</p><p>Until you reach this point -you haven't. You're tail chasing here, and your trimmings and varied shoulder bumpings are evidence of it.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1190177, member: 1521"] bigedp51's bottom picture shows why a true FL die cannot be used well for partial neck sizing. And you don't need to size the full length of necks unless you actually want extreme neck tension(including donut added grip). This is somewhat mitigated with use of bushing-body dies, which are also merchandised as FL dies today, but they're not. Better still is separate body sizing(with a body die) and separate partial neck sizing (with a bushing neck sizer die). And the best available option is separate body sizing with a custom body die(fit to your chamber formed cases), and separate bushing partial neck downsizing, and separate mandrel neck expansion (with an expander die). But no matter what you choose for sizing, it's success is tied to the baseline cartridge your chamber produces. A fully fire-formed, dimension stable cartridge. Until you reach this point -you haven't. You're tail chasing here, and your trimmings and varied shoulder bumpings are evidence of it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Reloading is so hard!
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