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Rifles, Reloading, Optics, Equipment
Reloading
Brass neck getting thicker.
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<blockquote data-quote="Mikecr" data-source="post: 591505" data-attributes="member: 1521"><p>No, I only turn necks once.</p><p>But, I don't FL size.</p><p></p><p>With a lot of/typical FL sizing, you move thicker body brass upward into what was thin. Web brass rolls up the body, into shoulders. Shoulder brass rolls into necks. Neck brass rolls up to mouths. And soon it's time to trim away all the brass you move.</p><p>Donuts form, case weight drops/capacity goes up, ALL springback changes(somewhat countering capacity increase), shoulder bumping settings change, and necks(turned or not) get thicker.</p><p>This is why it's better to stick with a minimal sizing plan. I don't have any of these issues.</p><p></p><p>What that means is stop FL sizing necks. There is no good gained in this -only bad. It means have a custom body-bushing die made from your fireformed brass.</p><p>You can get this from many die makers. I use JLC Precision and couldn't be happier. His custom dies are not expensive at all.</p><p>Use Sinclair's expander die & mandrel for neck expansion prior to bullet seating.</p><p></p><p>If you turn necks, run rational pressure loads(~3kfps w/105gr bullets), use a custom body-bushing die, and expander mandrel, you won't be back here with issues mentioned so far.</p><p>You won't have to ream(ever) or turn necks beyond initial preps(your choice there). You don't HAVE to turn necks at all, if clearance allows.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 591505, member: 1521"] No, I only turn necks once. But, I don't FL size. With a lot of/typical FL sizing, you move thicker body brass upward into what was thin. Web brass rolls up the body, into shoulders. Shoulder brass rolls into necks. Neck brass rolls up to mouths. And soon it's time to trim away all the brass you move. Donuts form, case weight drops/capacity goes up, ALL springback changes(somewhat countering capacity increase), shoulder bumping settings change, and necks(turned or not) get thicker. This is why it's better to stick with a minimal sizing plan. I don't have any of these issues. What that means is stop FL sizing necks. There is no good gained in this -only bad. It means have a custom body-bushing die made from your fireformed brass. You can get this from many die makers. I use JLC Precision and couldn't be happier. His custom dies are not expensive at all. Use Sinclair's expander die & mandrel for neck expansion prior to bullet seating. If you turn necks, run rational pressure loads(~3kfps w/105gr bullets), use a custom body-bushing die, and expander mandrel, you won't be back here with issues mentioned so far. You won't have to ream(ever) or turn necks beyond initial preps(your choice there). You don't HAVE to turn necks at all, if clearance allows. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Brass neck getting thicker.
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