Originally Posted by RTK
Bart, I called redding and asked if there were some way I could make a neck sizing die or FL sizing die size the complete neck. They said it was impossible due to the design, I then asked if I could machine (I have a buddy with a machine shop) the inside of the die at the top so the bushing would drop further down and size more of the neck, they said no, or at least would not attempt it for me.
RK, 'tis funny you should mention this. I just talked to Redding myself and they said two things about this issue.
* The bushings have the same diameter at both ends.
* Remove the decapping rod and the die can be set for the bushing to size the fired case neck all the way to the shoulder. Otherwise, with the decapper hardware in the die, the bushing stops a few hundredths of an inch short of sizing the complete neck and will not go further.
I thought this was reality as I'd talked with other folks using Redding full bushing dies sizing fired case necks all the way to the shoulder. They decap fired cases then clean them before sizing them.
There are top level competitors in several disciplines who just lap the neck out of a standard full length sizing die so it'll size case necks all the way to the shoulder. Sometimes the die's body will be honed/lapped out so fired case bodies do not size down more than .001"; the cases has minimal sizing and work hardening so they last for more reloads.