milboltnut
Moderator
I’m just wondering if necks turned will suffer going through a FL die and expand mandreled.
I’m just wondering if necks turned will suffer going through a FL die and expand mandreled.
and was trying to figure out how to describe the "true" alignment of a case after sizing...avoiding any deformation
I know this but I figured I'd post for guys who don't post but just read.the collet die.. the neck is formed to the mandrel which tends to form the neck straight and along the axis of the cartridge.
If one side of he neck is slightly more "dense" than the other, the neck is sized off center. The Collet Die is not prone to this.
I agree.... collet/mandrel, equal amount of force inside and out, verses expander mandrel with no outside reinforcement.the concept is great.
The Redding bushing dies transfer bad runout to the inside diameter of the case neck, while the Lee Collet Die places the lack of concentricity to the outside and leaves the inside diameter a mirror image of the mandrel, which has no runout.