Powder Compression Plug is used with the Lee Neck Expander Die to make the powder compression die of your choice.

Lee Neck Expanding Die sold separately.

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The Neck Expanding plug is used with the Lee Neck Expanding Die body for your Neck Expanding Die in the calibre of your choice.

Lee Neck Expanding Die sold separately.

The Lee neck expanding die body is used with the powder compression plugs for your powder compression die in the calibre of your choice.
Also used for your neck expanding die with one of the neck expanding plugs for your calibre.