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Rifles, Reloading, Optics, Equipment
Reloading
New to mandrel expanders have questions
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<blockquote data-quote="Mike D Texas" data-source="post: 1842124" data-attributes="member: 71221"><p>Thanks for the very detailed response. Regarding the Lee Collet sizer, it's my understanding that they produce very low runout since they use a mandrel and the collet to do the neck sizing. It looks like the standard mandrel they use is .002 less that caliber. In my case I'm looking at various 6.5mm cartridges so the mandrel that comes with it is sized at .262. again this is only my observation from what I've seen in videos and various forum posts. For around $30 I may give it a try to see for myself. Either way, good or bad, it will just add to my experiences.</p><p></p><p>Your description of the .003 under sizing with the neck bushing and expanding with the mandrel is the exact plan I had in mind. I typically undersized .003 from loaded outside diameter.</p><p></p><p>One last though for a repeater rifle fed from either an internal box or detachable mag, do you feel that .001 will provide enough tension on the necks to prevent potential bullet setback?</p></blockquote><p></p>
[QUOTE="Mike D Texas, post: 1842124, member: 71221"] Thanks for the very detailed response. Regarding the Lee Collet sizer, it’s my understanding that they produce very low runout since they use a mandrel and the collet to do the neck sizing. It looks like the standard mandrel they use is .002 less that caliber. In my case I’m looking at various 6.5mm cartridges so the mandrel that comes with it is sized at .262. again this is only my observation from what I’ve seen in videos and various forum posts. For around $30 I may give it a try to see for myself. Either way, good or bad, it will just add to my experiences. Your description of the .003 under sizing with the neck bushing and expanding with the mandrel is the exact plan I had in mind. I typically undersized .003 from loaded outside diameter. One last though for a repeater rifle fed from either an internal box or detachable mag, do you feel that .001 will provide enough tension on the necks to prevent potential bullet setback? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
New to mandrel expanders have questions
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