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Rifles, Reloading, Optics, Equipment
Reloading
Neck expander
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<blockquote data-quote="Alibiiv" data-source="post: 2076743" data-attributes="member: 69192"><p>One of the reasons that I use the Sinclair mandrel die is to eliminate the dreaded donut that is created by the expander ball. SO....I do remove the expander ball from all of my resizing dies and use a mandrel to neck size all of the cartridges that I reload for. I reload for a .270 Ackley Improved so there's a lot of brass moving going on, from what I read on this forum moving brass in the neck area "will" cause the donut if it is moved from the inside of the casing. I am not an expert on this, but from what I read there are two ways to eliminate the donut, (1) resize and neck size with an expander plug and ream the case necks, (2) mandrel neck size and turn the necks; I prefer the mandrel neck sizing and turning the necks. This makes sense to me because I can control neck tension by changing mandrels, plus I get the necks trued up in the process.</p></blockquote><p></p>
[QUOTE="Alibiiv, post: 2076743, member: 69192"] One of the reasons that I use the Sinclair mandrel die is to eliminate the dreaded donut that is created by the expander ball. SO....I do remove the expander ball from all of my resizing dies and use a mandrel to neck size all of the cartridges that I reload for. I reload for a .270 Ackley Improved so there's a lot of brass moving going on, from what I read on this forum moving brass in the neck area "will" cause the donut if it is moved from the inside of the casing. I am not an expert on this, but from what I read there are two ways to eliminate the donut, (1) resize and neck size with an expander plug and ream the case necks, (2) mandrel neck size and turn the necks; I prefer the mandrel neck sizing and turning the necks. This makes sense to me because I can control neck tension by changing mandrels, plus I get the necks trued up in the process. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Neck expander
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