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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
tight neck ?
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<blockquote data-quote="Guest" data-source="post: 64842"><p>I have just begun neck turning for the first time on my .222 Imp and immediately noticed a much lower velocity spread no doubt achieved from more uniform neck tension.</p><p>This is a major plus for long range work where velocity changes begin to affect the vertical strike.</p><p>My cases [Norma] were uneven in neck thichness and I have just taken a .0015 skim which averages a 85% clean up of the neck area.</p><p>This has been achieved without using neck bushing type dies as well altough that will be my intention when I can obtain custom dies.</p><p>I do not yet have a "tight neck" as such and intend having my reamer modified to a clearance of .002 after I turn off another .001 to fully uniform the necks.</p><p>My clearance now is .0055 after this first skim and with the current chamber so i don't want to take any more off before using a tighter neck chamber reamer.</p><p>APB</p></blockquote><p></p>
[QUOTE="Guest, post: 64842"] I have just begun neck turning for the first time on my .222 Imp and immediately noticed a much lower velocity spread no doubt achieved from more uniform neck tension. This is a major plus for long range work where velocity changes begin to affect the vertical strike. My cases [Norma] were uneven in neck thichness and I have just taken a .0015 skim which averages a 85% clean up of the neck area. This has been achieved without using neck bushing type dies as well altough that will be my intention when I can obtain custom dies. I do not yet have a "tight neck" as such and intend having my reamer modified to a clearance of .002 after I turn off another .001 to fully uniform the necks. My clearance now is .0055 after this first skim and with the current chamber so i don't want to take any more off before using a tighter neck chamber reamer. APB [/QUOTE]
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tight neck ?
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