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Rifles, Reloading, Optics, Equipment
Reloading
How much to turn necks?
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<blockquote data-quote="Alan Griffith" data-source="post: 113287" data-attributes="member: 4686"><p>Have my 100 new Lapua 30-06 cases, FL sized on my Forster BR die and trimmed to SAAMI mins. Used my Sinclair Mic-4 neck thickness gage to get down to .0025" (gage reads to .001" but I can try to eyeball it to .0025"). Groups ran thusly.</p><p></p><p>.0000" to .0005 (6 cases)further referred to as .5 or less</p><p>.0006" to .001" (38 cases) referr as .6" to 1"</p><p>.001" to .0015" (29 cases) referr as 1" to 1.5"</p><p>.0016 to .002" (16 cases) referr as 1.6" to 2"</p><p>.002 and larger (11 cases) referr as 2" and larger</p><p></p><p>In playing with my worst 11 cases, the worst 2 being .003" neck wall variation. They are .0014" to .0017" and .0015" to .0018". Of all 100 cases, .0014" is the smallest and .0018" is the largest. What I'm trying to figure out is should I try and take all 100 cases down to .0014" so I aim for .0000" variation or maybe get .0015" at best. </p><p></p><p>Or, on my best 6 cases, the largest diamater is .0016"; should I try and take all 100 cases down to .0016"?</p><p></p><p>Thanks for the help!</p></blockquote><p></p>
[QUOTE="Alan Griffith, post: 113287, member: 4686"] Have my 100 new Lapua 30-06 cases, FL sized on my Forster BR die and trimmed to SAAMI mins. Used my Sinclair Mic-4 neck thickness gage to get down to .0025" (gage reads to .001" but I can try to eyeball it to .0025"). Groups ran thusly. .0000" to .0005 (6 cases)further referred to as .5 or less .0006" to .001" (38 cases) referr as .6" to 1" .001" to .0015" (29 cases) referr as 1" to 1.5" .0016 to .002" (16 cases) referr as 1.6" to 2" .002 and larger (11 cases) referr as 2" and larger In playing with my worst 11 cases, the worst 2 being .003" neck wall variation. They are .0014" to .0017" and .0015" to .0018". Of all 100 cases, .0014" is the smallest and .0018" is the largest. What I'm trying to figure out is should I try and take all 100 cases down to .0014" so I aim for .0000" variation or maybe get .0015" at best. Or, on my best 6 cases, the largest diamater is .0016"; should I try and take all 100 cases down to .0016"? Thanks for the help! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How much to turn necks?
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