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Rifles, Reloading, Optics, Equipment
Reloading
turning necks
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<blockquote data-quote="AZShooter" data-source="post: 1166100" data-attributes="member: 5219"><p>Do you know the dimensions your chamber's neck? If there is more than lets say .007" per side then neck turning would not be a good idea. Turning is most useful with tighter neck clearances and sizing with a bushing. </p><p></p><p>Thinning the necks will cause them to expand more to conform to the chamber neck during firing. If a FL die with expander ball is used the neck will be over sized in the top of the die then pulled over the expansion ball for proper neck tension. Combine these two processes together and the necks will split prematurely. (I know I turned necks with a SAMMI chamber and a RCBS FL die and split virgin brass in two firings.)</p><p></p><p>As for using unturned brass and a bushing die, the brass wall thickness should be very consistent or you will end up varying the neck tension. There is a method that would work if you do use a bushing die, with inconsistent thickness, unturned necks. Use a bushing that is slightly tighter than you want and use a expander ball. There is less working of the brass this way when compared to a standard FL die. </p><p></p><p>Hope this makes sense.</p></blockquote><p></p>
[QUOTE="AZShooter, post: 1166100, member: 5219"] Do you know the dimensions your chamber's neck? If there is more than lets say .007" per side then neck turning would not be a good idea. Turning is most useful with tighter neck clearances and sizing with a bushing. Thinning the necks will cause them to expand more to conform to the chamber neck during firing. If a FL die with expander ball is used the neck will be over sized in the top of the die then pulled over the expansion ball for proper neck tension. Combine these two processes together and the necks will split prematurely. (I know I turned necks with a SAMMI chamber and a RCBS FL die and split virgin brass in two firings.) As for using unturned brass and a bushing die, the brass wall thickness should be very consistent or you will end up varying the neck tension. There is a method that would work if you do use a bushing die, with inconsistent thickness, unturned necks. Use a bushing that is slightly tighter than you want and use a expander ball. There is less working of the brass this way when compared to a standard FL die. Hope this makes sense. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
turning necks
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