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Rifles, Reloading, Optics, Equipment
Reloading
preventing run-out
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<blockquote data-quote="260shooter" data-source="post: 260322" data-attributes="member: 2988"><p>You will have to expand the neck up to 338. So run it over a 338 mandrel then run it into a type S bushing die. If not using a bushing die, expand with the expander ball then run the case back through with the expander ball and decapping rod removed. I did this with 7 RM brass and runnout went from .006- .007 to .000-. 002.</p><p></p><p>On the seating and turning method, experiment with it. With my 7 RM I got less runout than sizing and turning. With a 308 turning worked better.</p><p></p><p>260</p></blockquote><p></p>
[QUOTE="260shooter, post: 260322, member: 2988"] You will have to expand the neck up to 338. So run it over a 338 mandrel then run it into a type S bushing die. If not using a bushing die, expand with the expander ball then run the case back through with the expander ball and decapping rod removed. I did this with 7 RM brass and runnout went from .006- .007 to .000-. 002. On the seating and turning method, experiment with it. With my 7 RM I got less runout than sizing and turning. With a 308 turning worked better. 260 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
preventing run-out
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