RCBS presents a two-die full-length reloading set for .357 Sig bottleneck pistol cases. The set 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 is designed to bring cases to SAAMI minimum cartridge dimensions while vents reduce the risk of case damage from trapped air or excess lubricant. Headspace is held to minimum tolerances to avoid unintended case body length changes during full-length sizing.
Key Specifications
- Intended for caliber .357 Sig.
- Contains 2 dies in the set.
- Configured as a full-length die set for bottleneck cases.
- Includes a Full-Length Sizer Die with an expander-decapping unit.
- The Seater Die incorporates a built-in roll crimper to secure the bullet while seating.
- The Full-Length Sizer brings cases to SAAMI minimum cartridge dimensions.
- The dies have vents to help prevent case damage from trapped air or excessive lubricant.
- Headspace is held to minimum tolerances to avoid changing case body length during sizing.
- Carbide construction: No.
- Package dimensions measure 1.75 x 4.55 x 6.00 inches.
This two-die RCBS Full-Length Die Set delivers consistent full-length sizing and secure bullet seating for .357 Sig reloaders who value reliable, repeatable case preparation. Its straightforward design combines SAAMI-dimension sizing, vented dies, and a roll crimper to provide practical functionality for routine reloading tasks.
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.




