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Rifles, Reloading, Optics, Equipment
Reloading
How to Identify a Neck Donut?
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<blockquote data-quote="Roninco" data-source="post: 1908496" data-attributes="member: 114195"><p>Thanks for the info. This is a 180 grain ELD-M in a 7mm SAUM so the base is well below the neck-shoulder juncture. This could result in bullet impingement if a donut was forming after several reloads. I am trying to determine how to identify if the dreaded donut is forming. Bullet seating pressure seems normal from previous reloads. But I had to pull some of the bullets and it required far too much effort to extract to believe this was normal. Looking into the necks of the pulled cases I sometimes see a bright ring at the neck-shoulder area. If this is copper residue from the bullet could it be caused by a donut?</p></blockquote><p></p>
[QUOTE="Roninco, post: 1908496, member: 114195"] Thanks for the info. This is a 180 grain ELD-M in a 7mm SAUM so the base is well below the neck-shoulder juncture. This could result in bullet impingement if a donut was forming after several reloads. I am trying to determine how to identify if the dreaded donut is forming. Bullet seating pressure seems normal from previous reloads. But I had to pull some of the bullets and it required far too much effort to extract to believe this was normal. Looking into the necks of the pulled cases I sometimes see a bright ring at the neck-shoulder area. If this is copper residue from the bullet could it be caused by a donut? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How to Identify a Neck Donut?
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