The Hornady Expander Die for 38 Special and 357 Magnum (Hornady part no. 044591) flares the case mouth just enough to seat a new bullet cleanly without shaving lead or copper off the bullet base, a critical step for straight-wall pistol cartridges loaded on a single-stage or turret press. Because 38 Special and 357 Magnum share the same case head and are commonly loaded together on the same equipment, this expander die covers both calibers in one part. Hornady machines the die to open the case mouth just enough for a clean seat without over-flaring and work-hardening the brass.

Key Specifications

• Flares the case mouth to allow damage-free bullet seating.
• Compatible with both 38 Special and 357 Magnum.

Frequently Asked Questions

What does an expander die do? It flares the case mouth slightly so a new bullet seats cleanly without shaving material off the bullet base.

Does this die work for both 38 Special and 357 Magnum? Yes, both cartridges share the same case head dimensions and this die is built to cover both.

Buy the Hornady Expander Die, 38 Spl/357 Mag

Order yours from Hornady in our reloading dies lineup and seat bullets clean on your 38/357 loads. Order it from our Lubbock, Texas gun shop for fast, insured shipping.