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Expanding Mandrels

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

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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    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
    Save 8%