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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning vs reaming
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<blockquote data-quote="Mikecr" data-source="post: 1026050" data-attributes="member: 1521"><p>This is true. Brass pulled new from the box should be right for your turning sys expander mandrel, to create correct fit on the turning mandrel.</p><p></p><p>Donuts initially show up on fireforming, when a bit of the thicker shoulder brass becomes part of the new neck. You have an opportunity to head this off when turning new brass, and this opportunity is past(missed) once fireformed.</p><p>There are folks who turn post-fireforming, FL sizing of necks, re-expansion or reaming, etc. I guess they like to challenge themselves.. </p><p>But there is nothing good in FL sizing of necks, and hand reaming is not as accurate as turning.</p><p>It really is best to follow basic turning 101 with outside turning of new brass.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1026050, member: 1521"] This is true. Brass pulled new from the box should be right for your turning sys expander mandrel, to create correct fit on the turning mandrel. Donuts initially show up on fireforming, when a bit of the thicker shoulder brass becomes part of the new neck. You have an opportunity to head this off when turning new brass, and this opportunity is past(missed) once fireformed. There are folks who turn post-fireforming, FL sizing of necks, re-expansion or reaming, etc. I guess they like to challenge themselves.. But there is nothing good in FL sizing of necks, and hand reaming is not as accurate as turning. It really is best to follow basic turning 101 with outside turning of new brass. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Neck turning vs reaming
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