Originally Posted by Cricket
Will a Forster co ax and lee collet help with bullet runout.
They are a sound design, and many guys swear by them. But you need a better seater. For that go with the Forster. I do several tight neck chambers, and for that they just don't fit the bill. You probably want to run the use of the collet dies with guys that use them all the time on here. I'm still learning to use them. The only seater I've found better than the Forster is a Wilson inline die used in an arbor press. I personally have had better luck with the Forster full length sizer than the others. But a Redding would have done just as well at full length sizing.
If you do decide to use the collet die in the Co-Ax press, you want to replace the Lee rings with the ones made by Forster, or Lyman. They fit the slots better.