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Rifles, Reloading, Optics, Equipment
Reloading
Lee collet dies--inconsistant neck tension
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<blockquote data-quote="Mysticplayer" data-source="post: 85044" data-attributes="member: 8947"><p>Not the fault of the operator....Ummmmm.</p><p></p><p>I like to have the press ram touch the die about 2/3's the way down on the press lever. This gives me lots of leverage to give that die a nice 'squeeze'.</p><p></p><p>If you find that even with all this the brass is not sizing, take the die apart and measure the mandrel. It should be 3 to 4 thou under bullet diameter. If this is correct, you need to anneal the brass.</p><p></p><p>One nice feature rarely discussed is that the die can be an indicator of neck hardening (case spring back is high). If I find a few cases that will not size, I know that the necks need to get annealed. That is usually when 'flyers' start to show up. After annealing, all is well again.</p><p></p><p>No other die has been able to show me this problem. Yet another reason why I like these Lee dies.</p><p></p><p>Jerry</p><p></p><p>PS will buy most Collet dies you don't want. I need more.</p></blockquote><p></p>
[QUOTE="Mysticplayer, post: 85044, member: 8947"] Not the fault of the operator....Ummmmm. I like to have the press ram touch the die about 2/3's the way down on the press lever. This gives me lots of leverage to give that die a nice 'squeeze'. If you find that even with all this the brass is not sizing, take the die apart and measure the mandrel. It should be 3 to 4 thou under bullet diameter. If this is correct, you need to anneal the brass. One nice feature rarely discussed is that the die can be an indicator of neck hardening (case spring back is high). If I find a few cases that will not size, I know that the necks need to get annealed. That is usually when 'flyers' start to show up. After annealing, all is well again. No other die has been able to show me this problem. Yet another reason why I like these Lee dies. Jerry PS will buy most Collet dies you don't want. I need more. [/QUOTE]
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Lee collet dies--inconsistant neck tension
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