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Rifles, Reloading, Optics, Equipment
Gunsmithing
7mm Chamber Neck Size
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<blockquote data-quote="Deviant" data-source="post: 1497936" data-attributes="member: 106404"><p>I like to turn all of my necks so I no that will never be an issue with consistency. I am having a 6.5 Saum built now and am using a .296 reamer. I necked down Bertram 7 Saum brass and turned the necks to .014 and with a loaded round they measure .292 leaving me with .004 clearance for expansion. Turning the necks gives you lower SD and better accuracy in my opinion. I also use a Whidden click adjustable FL sizing die with the expander removed and then use a sinclair mandrel die to open it up for .003 neck tension. I use the neck turning mandrel first before I turn the necks as it is slightly smaller.</p></blockquote><p></p>
[QUOTE="Deviant, post: 1497936, member: 106404"] I like to turn all of my necks so I no that will never be an issue with consistency. I am having a 6.5 Saum built now and am using a .296 reamer. I necked down Bertram 7 Saum brass and turned the necks to .014 and with a loaded round they measure .292 leaving me with .004 clearance for expansion. Turning the necks gives you lower SD and better accuracy in my opinion. I also use a Whidden click adjustable FL sizing die with the expander removed and then use a sinclair mandrel die to open it up for .003 neck tension. I use the neck turning mandrel first before I turn the necks as it is slightly smaller. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
7mm Chamber Neck Size
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