This two-die RCBS set is designed for full-length reloading of 7.7×58 Japanese Arisaka bottleneck cases. It includes 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 full-length sizer returns cases to SAAMI minimum dimensions while minimizing changes to case body length.
Key Specifications
- The set is intended for 7.7mmx58 Japanese Arisaka cartridges.
- The kit includes 2 dies — a full-length sizer and a seater die.
- The sizer die features an expander-decapping unit to de-prime and expand the neck.
- The seater die has a bullet seater plug and a built-in roll crimper to secure the bullet as it is seated.
- The full-length sizer brings the case to SAAMI minimum cartridge dimensions.
- The dies include vents to prevent case damage from trapped air or excess lubricant, as described in the manufacturer text.
- Headspace is held to minimum tolerances to avoid changing case body length during full-length sizing.
- The set uses a standard 7/8-inch-14 thread die configuration.
- The dies are not carbide (carbide: No).
- Package dimensions are listed as 1.70 x 4.50 x 6.00 inches.
This RCBS two-die full-length set provides the core tooling required for consistent full-length resizing and seating of 7.7×58 Japanese Arisaka cases. Its combination of an expander-decapping sizer and a seater with roll crimper supports routine reloading workflows where reliable case sizing and secure bullet seating are required.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.
