The RCBS Full Length Die Set for 6mm ARC is a two-die reloading kit engineered for consistent full-length sizing and precise bullet seating of bottleneck rifle cases. It pairs a Full-Length Sizer Die with an Expander-Decapping Unit and a Seater Die with a Bullet Seater Plug and built-in roll crimper. The sizer die is designed to bring cases to SAAMI minimum cartridge dimensions while venting helps prevent damage from trapped air or excess lubricant. The set ships in RCBS’s green die box and is manufactured in the USA.
Key Specifications
- The set is designed for 6mm ARC cartridges.
- This is a two-die set including a full-length sizer and a seater die.
- The sizing die includes an Expander-Decapping Unit for de-priming and neck expansion.
- The seater die features a Bullet Seater Plug and a built-in roll crimper.
- The sizer brings cases to SAAMI minimum cartridge dimensions.
- The dies use proprietary die steel manufactured by RCBS.
- The threading is standard 7/8″-14 for compatibility with common presses.
- The set ships in a green die box for storage and transport.
- The product is made in USA.
- Shellholders are sold separately and are not included in this set.
For reloaders who demand repeatable, accurate case sizing and reliable seating, this RCBS two-die set provides the essential tools to support consistent chambering and bullet alignment. Its straightforward design and trusted materials make it a solid choice for methodical handloaders working with the 6mm ARC cartridge.









