Thread: Playing with some Redding Competition Shell Holders

Greetings @Micky Duck and all,
Tried to expand the necks with my .30-40 dies today. These have an elliptical expander button that is supposed to pass through the necks. This expanded the necks a bit deeper but still came to a hard stop. I did some measuring and there is a distinct larger dia portion of the neck just in front of the shoulder. I think my original idea was correct, a combination of hard brass an a bit of a doughnut. This could have been there for some time as only loadings two and three were full length sized with the following three neck sized about 70% of the case neck.
Regards Grandpamac.