Cortina Precision Expanding Mandrel Die - For Caliber Familly WSM

The expander mandrel die holds the expander mandrels which. Cortina Precision Expander mandrel dies are compatible with 21st Century expander mandrels.

Dies are coated with Black nitride and are cartridge family specific.  What it means is that a 6mm BR will work with 6mm BR, Dasher, BRX, BRA, etc. A 284 die will work with 284 Winchester, 284 Shehane, and any other variants of the 284 case.

Our expander mandrel dies size the base of the case the same way your Full Length sizing die would.  This helps align the case with the mandrel and also helps reduce “clickers” as brass ages.

The expander mandrel die holds the expander mandrels which. Cortina Precision Expander mandrel dies are compatible with 21st Century expander mandrels.

Dies are coated with Black nitride and are cartridge family specific.  What it means is that a 6mm BR will work with 6mm BR, Dasher, BRX, BRA, etc. A 284 die will work with 284 Winchester, 284 Shehane, and any other variants of the 284 case.

Our expander mandrel dies size the base of the case the same way your Full Length sizing die would.  This helps align the case with the mandrel and also helps reduce “clickers” as brass ages.