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Rifles, Reloading, Optics, Equipment
Reloading
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<blockquote data-quote="Bullet bumper" data-source="post: 744230" data-attributes="member: 17844"><p>That is exactly how it should feel , you have it right . </p><p>The position of the die changes when you remove it because the lock nut moves and also the rubber O ring . A collet die is very sensitive to thread adjustment and only needs a fraction of a turn to change things . After a while you get real proficient at resetting the cam over with the first case of a batch and then it's all automatic. The cam over feel is more important than where the die actually is because variations in neck thickness between brands and batch's can change things . Don't remove the die during a batch of brass. </p><p>The best thing to do with Lee's instructions is throw them away.</p><p>They don't advise cam over because most of their press designs CAN'T do it.</p><p>.003 neck tension is fine and good for big calibres and heavy bullets also. Autos etc. You can still crimp if you get any bullet movement . </p><p>Or if you don't want to crimp polish down the mandrel .001 more. </p><p>Variations in neck thickness will change neck tension to some degree . </p><p>.002 would be ok for smaller calibres and hand fed ammo . </p><p>With my cam over method it is much easier to gauge how much pressure you are applying because you have a stopping point . Just leaning on the handle gives variable results as you get tired and some just lean on it until the die breaks.</p></blockquote><p></p>
[QUOTE="Bullet bumper, post: 744230, member: 17844"] That is exactly how it should feel , you have it right . The position of the die changes when you remove it because the lock nut moves and also the rubber O ring . A collet die is very sensitive to thread adjustment and only needs a fraction of a turn to change things . After a while you get real proficient at resetting the cam over with the first case of a batch and then it's all automatic. The cam over feel is more important than where the die actually is because variations in neck thickness between brands and batch's can change things . Don't remove the die during a batch of brass. The best thing to do with Lee's instructions is throw them away. They don't advise cam over because most of their press designs CAN'T do it. .003 neck tension is fine and good for big calibres and heavy bullets also. Autos etc. You can still crimp if you get any bullet movement . Or if you don't want to crimp polish down the mandrel .001 more. Variations in neck thickness will change neck tension to some degree . .002 would be ok for smaller calibres and hand fed ammo . With my cam over method it is much easier to gauge how much pressure you are applying because you have a stopping point . Just leaning on the handle gives variable results as you get tired and some just lean on it until the die breaks. [/QUOTE]
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