21st Century - Black Nitride Expander Mandrel

Custom Measurements for Case Neck Expanding.

Black Nitride adds a degree of hardness and friction reduction to the surface of the mandrel. This helps minimize galling that can occur.

Black Nitride Caliber Specific Expander Mandrels are available in .0005” increments in calibers 22 to 338. Incremental mandrels will allow the reloader to find proper neck tension to fine-tune their loads. We recommend our Moly Dry Neck Lube for use with all of our expander mandrels.

Expander Die Body required and sold seperately here

21st Century Expander Mandrels and Arbors are designed for proper fit in our die bodies. While these may work in most Sinclair and PMA die bodies we cannot guarantee proper fitment in those bodies.

Machined to hold a tolerance of +/_ .0002"

*PLEASE USE MICROMETERS TO MEASURE

Shipping & Returns

Shipping Costs are calculated at the checkout, based on your postcode and the weight of all combined items.

Due to Australia Post limitations, the maximum weight for each order is 20kg. Orders over this weight limit will have to be placed in two separate orders. For heavy items please contact us directly to discuss shipping.

Expensive and/or fragile items will only be shipped via registered post with adequate insurance.

Due to Australian regulations we are restricted to shipping all projectiles to customers located in Australia only.

Dangerous goods including powders, solvents and primers cannot be shipped and MUST be collected from the QStore.

Click here to view our full policy.