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Expanding Mandrel Dies & Mandrels

Expanding Dies offer the handloader unparalleled control over the I.D. of their case necks (neck tension).

Expanding Dies are machined on CNC Lathes and heat-treated to ensure dimensional integrity and durability for a lifetime of use. The unique alignment surfaces of the Die Body and Mandrel ensure perfect alignment when assembled and secured with the threaded retention plug and lock ring.

Expander Mandrels are machined from high-quality tool steel which is then hardened and precision-ground to their final diameter.  Depending on the brand, they are available in 0.001" and .0005” diameter increments ranging from .0005” thru .0030 below nominal bullet diameter so that neck tension can be fine-tuned to suit the handloader’s preference.

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    LE Wilson Expanding Die Mandrels

    £20.05
    £19.65

    LE Wilson Expanding Mandrels. Designed to be used on new rifle cartridge cases to prepare them for the seating operation. Over recent years we have...

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    £20.05
    £19.65
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    LE Wilson Expanding Mandrel Die Only

    £68.20
    £66.80

    The LE Wilson Expanding Mandrel Sizing Die is designed to be used on new rifle cartridge brass cases to prepare them for the seating operation. Ove...

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    £68.20
    £66.80
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    Redding Expanding Die Mandrels

    £33.40
    £30.75

    Redding Precision Expanding Die Mandrels. Precision Expander Mandrels are machined from high-quality tool steel which is then hardened and precisio...

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    £33.40
    £30.75
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    Redding Precision Expanding Die

    £42.40
    £39.05

    The Redding Precision Expanding Die offers the handloader unparalleled control over the I.D. of their case necks (neck tension). Precision Expandin...

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    £42.40
    £39.05
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    Redding Precision Expanding Dies

    £75.80
    £69.75

    The Redding Precision Expanding Die offers the handloader unparalleled control over the I.D. of their case necks (neck tension). Precision Expandin...

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    £75.80
    £69.75
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