The base of the Lee Factory crimp die collet may not reach the base of the Hornady shell plate due to interference from the threads of the die body itself. Therefore the collet could not compress to produce the crimp. Solution was to turn down by .050" radius (X .110" long, the length of the exposed base portion of the collet) allowing the collet base to seat on the shell plate and act as a plunger.
Before the crimp was made the cartridge would not chamber and now it does perfectly.
Recommend that if turning on lathe, to avoid damaging the die threads in chuck, to keep the die in the Hornady LNL bushing, tighten the Lee Lock but against it and chuck the jaws on the Lee locking ring. The length removed isn't critical but a minimal amount needed for smooth operation.
