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Rifles, Reloading, Optics, Equipment
Reloading
Velocity spreads and neck turning??
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<blockquote data-quote="Mikecr" data-source="post: 653501" data-attributes="member: 1521"><p>This is wrong. While neck turning may be required for a tight neck chamber, that chamber is always a choice. And anything that is 'not a big deal' with specific regard to factory guns, is probably hog wash.. It often takes way more tricks in the bag to get factory guns shooting well.</p><p></p><p></p><p>Both can be affected, but indirectly from neck thickness. Given this, there is more than one way to skin the cats. Also, some choose to turn necks as a matter of basic reloading/sizing plan. </p><p>Velocity: All else equal thinner necks springback with less force causing lower bullet grip(tension). This lowers velocity a tad and is countered elsewhere in load development. But it also has the benefit of reducing ES in many cartridges(and will not raise ES). This because lower springback forces mean lower springback force variance -to affect MV.</p><p>Accuracy: Accuracy is a matter of what you can repeat in the long term(not a wallet group).</p><p>While neck turning does greatly reduce runout, accuracy gain from this could be beyond your proving. An easier to see benefit comes down to exact control & consistency w/regard to chamber fit and minimal sizing, so that you get nice long runs of great performance from your brass, before needing to mung it all up with annealing(for rising ES). </p><p></p><p></p><p>Simple case capacity change from new to fireformed. You should never waste time load developing with new brass.</p><p>This is not a matter related to neck turning.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 653501, member: 1521"] This is wrong. While neck turning may be required for a tight neck chamber, that chamber is always a choice. And anything that is 'not a big deal' with specific regard to factory guns, is probably hog wash.. It often takes way more tricks in the bag to get factory guns shooting well. Both can be affected, but indirectly from neck thickness. Given this, there is more than one way to skin the cats. Also, some choose to turn necks as a matter of basic reloading/sizing plan. Velocity: All else equal thinner necks springback with less force causing lower bullet grip(tension). This lowers velocity a tad and is countered elsewhere in load development. But it also has the benefit of reducing ES in many cartridges(and will not raise ES). This because lower springback forces mean lower springback force variance -to affect MV. Accuracy: Accuracy is a matter of what you can repeat in the long term(not a wallet group). While neck turning does greatly reduce runout, accuracy gain from this could be beyond your proving. An easier to see benefit comes down to exact control & consistency w/regard to chamber fit and minimal sizing, so that you get nice long runs of great performance from your brass, before needing to mung it all up with annealing(for rising ES). Simple case capacity change from new to fireformed. You should never waste time load developing with new brass. This is not a matter related to neck turning. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Velocity spreads and neck turning??
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