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Lee Neck Sizing Die Failure
The Old Salt
Member Posts: 94 ✭✭
Both the internal threads in the collet assembly barrel & the top cap that holds the internal components in failed. Thread tops sheared off. Cap pushes out to the barrel as case is pushed into the bottom of the die. E-mailed Lee Precision. We'll see how they respond. This die has only sized a few hundred 308 case necks. Has this happened to anyone else?
Comments
I didn't bother contacting them-just sent the buggered part(s).
All you can do is close the collet to squeeze the neck against the mandrel, ramming it harder is not going to do anything but break the die. I had to learn that the hard way, too.
I recently saw a post were a guy got a stronger than average Lee collet die and broke the press!
they tend to do that. Back the die body off a tad and that shouldn't happen again. Lee will send you a replacement cap at no charge.
+1
Didn't realize the cap was aluminum. It broke when the press cammed over. Too much pressure.
Does anyone else make a neck size die that doesn't require lube?
Just use the Lee properly.
either way,..the lee die will sometimes not give enough neck tension without making the press cam over and get close to damaging the cap. What I do in that case, is to dis-assemble the die, and chuck the mandrel in a drill. By using sand paper (for metal) from larger to smaller grit, and holding it around the mandrel as it is spun in the drill, with some oil applied, and a set of calipers handy, you can reduce the size of the mandrel in .001"s of an inch. This makes it so that the neck tension is increased, without having to place unneeded pressure on that cap by having to cam-over the press.[;)]
My Rock Chucker (and my RCBS Junior) does not cam over. However, I have an old Pacific/Hornady that does. Unless I don't understand what is meant here by "cam-over".
cam-over is when the die body has been adjusted so far down that the shell holder makes contact at the very last part of the stroke, and you feel pressure on the handle that requires an increased pressure needed to fully complete the stroke. It gets tougher and then you feel a THUMP when the handle fully goes all the way. Try it with a die and you will see what I mean.