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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM load development questions
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<blockquote data-quote="MontanaRifleman" data-source="post: 779577" data-attributes="member: 11717"><p>While you're waiting for Bart's reply, there are two possible advantages to using a bushing. One is being able to adjust the neck tension. Some say that minimum neck tension leads to more consistent results. Another theory that is hard to prove or disprove. I have several chats with various technicians at Redding and Hornady about dies. A Redding tech said the best sizing die in his opiniong was the std FL die. The 22-250 and 25-06 cases that I recently sized with the standard New Dimension FL die have all turned out with about .001 neck runout and that was using an expander ball. Very acceptable IMO.</p><p></p><p>The other advantage, if it is an advantage, is leaving the fired donut. Again, some say this aligns the case in its fired position, neck centered in the chamber and little to movement or slop of the cartridge in chamber. Another hard one to prove or disprove. On short neck cases, the donut may be more of a disadvantage.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 779577, member: 11717"] While you're waiting for Bart's reply, there are two possible advantages to using a bushing. One is being able to adjust the neck tension. Some say that minimum neck tension leads to more consistent results. Another theory that is hard to prove or disprove. I have several chats with various technicians at Redding and Hornady about dies. A Redding tech said the best sizing die in his opiniong was the std FL die. The 22-250 and 25-06 cases that I recently sized with the standard New Dimension FL die have all turned out with about .001 neck runout and that was using an expander ball. Very acceptable IMO. The other advantage, if it is an advantage, is leaving the fired donut. Again, some say this aligns the case in its fired position, neck centered in the chamber and little to movement or slop of the cartridge in chamber. Another hard one to prove or disprove. On short neck cases, the donut may be more of a disadvantage. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM load development questions
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