RCBS 12501 Full-Length Die Set .257 Roberts
Complete two-die reloading set for .257 Roberts bottleneck cases. Includes full-length sizer with expander-decapping unit and seater die with integrated roll crimper for precision handloading.
RCBS Full-Length Die Set for .257 Roberts
This two-die set provides everything you need to reload .257 Roberts bottleneck cases with precision and consistency.
What's Included
- Full-Length Sizer Die with Expander-Decapping Unit
- Seater Die with Bullet Seater Plug and integrated roll crimper
Full-Length Sizer Die Features
The sizer die brings your cases to SAAMI minimum cartridge dimensions for reliable feeding and chambering. It accomplishes three critical tasks:
- Sizes the outside of the case to specification
- De-primes spent primers safely and completely
- Expands the neck uniformly to accept your bullet
Vented design prevents case damage from trapped air and excessive lubricant buildup. Headspace is held to minimum tolerances, ensuring the case body length remains consistent during the sizing process.
Seater Die Features
The seater die seats your bullet to precise depth while simultaneously applying a roll crimp. This integrated approach ensures bullet security and consistent cartridge dimensions from round to round.
Why Choose This Set
RCBS dies are engineered for accuracy and durability. This Group A set handles one of the classic American rifle cartridges—a favorite among precision shooters and hunters who appreciate the .257 Roberts' flat trajectory and moderate recoil.
