Originally Posted By: ackleymanI tried it on several different occasions.
Here is the problem, you adjust your die to full length size properly, then screw up the adjustment for neck sizing, have to adjust your expander ball position, then re do the whole thing when you full length size.
You have to use lube on the case when partially full length size for neck sizing only, and if you don't, you will end up putting scratches in your die.
Lee collet neck sizers are probably one of the most unappreciated pieces of reloading equipment on the market. Sizing pins come in .001 increments from Lee, and Grangers sells pins graduated in .0005 increments. Neck run out with Lee Collet sizers is absolutely fabulous. Another issue on the lee collet sizers is that the Ackley Improved cases will work on a standard parent case sizer. This saves a guy a bunch of money vs bushing die plus several bushings. I use hornady lock rings on my lee collet sizers.
This tool does not lie on sized neck run out or bullet run out:
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Good information, Keith. XTC match shooting doesn't require the one hole groups that BR does fortunately, but that does not mean we didn't try to squeeze the most accuracy we could from our ammo and equipment.
For my purposes, runout was more important as the range increased. I'm not sure if bushing neck sizing dies were even available or the Lee Collet dies but I learned early on that runout largely was induced when pulling case back over expander ball in the sizing die. I replaced expander with an floating carbide expander which helped; setting the expander ball as close to the neck sizing portion of die without overlap also helped, but still was a problem until I sent my sizer to RCBS along with several neck turned cases and they reamed the die to produce proper tension w/o using the ball. Not perfect but much better according to my home built concentricity measuring tool.
I really like the drive wheel on your store bought tool; I'm sure it is more accurate than turning by hand. Who makes that fixture?
Regards,
Clarence