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Lyman Premium Carbide 3 Die Sets

Pistol Neck Expanding M Dies

Current Price:

Availability: In stock

SKU: Pistol Neck Expanding M Dies

A Lyman Original that Extends Case Life for the Reloader

Improves accuracy of cast and jacketed bullet reloads. Doesn't stretch cases as does standard expander button. Extends case life. A "Must-Have" die for the cast bullet or flat-base bullet user.

The first step expands the inside of the case neck to just under bullet diameter for precise case neck tension in the finished reload.

The second step expands the case mouth to bullet diameter or slightly over. This allows the jacketed or cast bullet to be started perfectly centered in the case mouth and properly aligned with the axis of the case neck.

Note: By adjusting the neck expanding plug slightly deeper, the second step also provides a slight flaring of the case mouth for reloaders using cast bullets.


WARNING: This product can expose you to lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to
Product numbers available: 7340820, 7340832, 7340833, 7341801, 7342081, 7342100
All pistol neck expanding M die
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