Description
This mandrel measures a nominal 0.243". Our normal expander mandrels measure .001" under bullet diameter. Over the years, we have had many requests for an expander mandrel that is the same as bullet diameter.
Our Neck Expanding Mandrels are designed to fit both the 21st Century Shooting and Sinclair Expander Dies. Our mandrels are longer than other expanding mandrels and feature a special dual taper which expands both on the up and down stroke of the press to more uniformly expand and straighten case necks.