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Rifles, Reloading, Optics, Equipment
Reloading
Sinclair Expander Mandrel Die Test
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<blockquote data-quote="Greasegun" data-source="post: 1817205" data-attributes="member: 112196"><p>I use a similar setup to test runout. V-block with a .0005" Interapid. You can narrow down your runout issues by checking inside the neck before seating bullets, then checking on the bullet after seating. Also I switched to a hardened vee block instead of the one in the pic (Cold rolled steel made in shop class 20 years ago) so my cases dont look all scratched up afterwards. </p><p></p><p>My redding die was imparting up to .010" runout on my necks (.223rem) with the mandrel installed. I get .004" or less with the sinclair setup. I can also turn my own mandrels for custom neck tension.</p></blockquote><p></p>
[QUOTE="Greasegun, post: 1817205, member: 112196"] I use a similar setup to test runout. V-block with a .0005" Interapid. You can narrow down your runout issues by checking inside the neck before seating bullets, then checking on the bullet after seating. Also I switched to a hardened vee block instead of the one in the pic (Cold rolled steel made in shop class 20 years ago) so my cases dont look all scratched up afterwards. My redding die was imparting up to .010" runout on my necks (.223rem) with the mandrel installed. I get .004" or less with the sinclair setup. I can also turn my own mandrels for custom neck tension. [/QUOTE]
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Sinclair Expander Mandrel Die Test
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