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Rifles, Reloading, Optics, Equipment
Reloading
How to Identify a Neck Donut?
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<blockquote data-quote="dok7mm" data-source="post: 1908396" data-attributes="member: 90080"><p>I use pin gauges to check if shoulder brass is moving into neck. [USER=1521]@Mikecr[/USER] is spot on about dies oversizing your case, that brass goes to neck.</p><p></p><p>My solution has been to use mandrels and turning the necks + a bit into shoulder. This will delay donuts for awhile, but you have to check for reoccurrence. Another option is to find a load where the bearing surface seats above the neck/ shoulder junction.</p></blockquote><p></p>
[QUOTE="dok7mm, post: 1908396, member: 90080"] I use pin gauges to check if shoulder brass is moving into neck. [USER=1521]@Mikecr[/USER] is spot on about dies oversizing your case, that brass goes to neck. My solution has been to use mandrels and turning the necks + a bit into shoulder. This will delay donuts for awhile, but you have to check for reoccurrence. Another option is to find a load where the bearing surface seats above the neck/ shoulder junction. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How to Identify a Neck Donut?
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