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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity .. how important?
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<blockquote data-quote="Clark" data-source="post: 1456037" data-attributes="member: 6600"><p>I did an experiment with 25 pieces of brass each dedicated to one sizer die.</p><p>The result was the opposite of what I expected for results.</p><p>The cheapest and ugliest Lee Collet neck die was the best, and the Redding FL "S" die was the worst , with all the other dies in between.</p><p></p><p>For the last 15 years for each new cartridge I have got a reamer, a honed Forster FL die, a Forster Sliding seater die, and a Lee collet neck die.</p><p></p><p>My technique has been stuck until 2018 when my brother sent me a #3 Morse Taper 3 jaw chuck live center for the lathe. I can now quickly and easily turn necks with no measurable [with a ball micrometer] run out. This makes little difference with most cartridges, but it will be a big deal with case forming, like converting 308 Lapua Palma brass with small primer pocket to 260 Remington.</p><p></p><p>This week I have honed out [my own caveman honing] a couple Lee 280AI FL necks from 0.298" to 0.308".</p><p></p><p>This thread got me to order Redding body dies for 280AI and 7mmSTW.</p></blockquote><p></p>
[QUOTE="Clark, post: 1456037, member: 6600"] I did an experiment with 25 pieces of brass each dedicated to one sizer die. The result was the opposite of what I expected for results. The cheapest and ugliest Lee Collet neck die was the best, and the Redding FL "S" die was the worst , with all the other dies in between. For the last 15 years for each new cartridge I have got a reamer, a honed Forster FL die, a Forster Sliding seater die, and a Lee collet neck die. My technique has been stuck until 2018 when my brother sent me a #3 Morse Taper 3 jaw chuck live center for the lathe. I can now quickly and easily turn necks with no measurable [with a ball micrometer] run out. This makes little difference with most cartridges, but it will be a big deal with case forming, like converting 308 Lapua Palma brass with small primer pocket to 260 Remington. This week I have honed out [my own caveman honing] a couple Lee 280AI FL necks from 0.298" to 0.308". This thread got me to order Redding body dies for 280AI and 7mmSTW. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity .. how important?
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