Built to slightly different dimensions than the regular RCBS dies to allow optimum expanding needed to load great lead bullet ammo. Heat treated for a more authentic appearance. Handsome brass lock rings and period style packaging complement these premium dies. Shellholder sold separately.
- Straight wall cases require an extra die to expand the case mouth. The case mouth needs to be slightly flared to allow seating of the bullet.
- This die is usually found as the second die in a set for straight walled cases.
- Bottleneck cases get "expanded" as the case is drawn over the expander ball while being removed from the resizing die.