The Lee Precision 90551 Pacesetter 3-Die Set delivers comprehensive reloading capability for .257 Roberts cartridges with precision-engineered dies that ensure consistent ammunition performance. This complete die set provides everything needed to reload this classic hunting cartridge with professional-grade accuracy.
What Makes This Different
Lee's Pacesetter dies feature hardened steel construction with precise tolerances that maintain case dimensions within SAAMI specifications. Unlike basic die sets, the Pacesetter series includes Lee's Factory Crimp Die technology that applies uniform crimp pressure regardless of case length variations. The three-die configuration handles full-length sizing, bullet seating, and final crimping in separate operations for optimal control over each reloading step.
Key Features
- Complete 3-die set: full-length sizing die, bullet seating die, and Factory Crimp Die
- Hardened steel construction with carbide sizing ring for extended die life
- Factory Crimp Die technology ensures consistent bullet retention
- Includes shell holder, powder dipper, and detailed reloading instructions
- Standard 7/8"-14 threading fits all major reloading presses
- Precision-honed interior surfaces maintain case concentricity
- Load data and starting recommendations included with die set
The .257 Roberts cartridge excels in medium game hunting applications where flat trajectory and moderate recoil matter. This die set enables handloaders to develop custom loads optimized for specific rifles and hunting scenarios. The Factory Crimp Die particularly benefits this cartridge by ensuring proper bullet grip in the longer case neck, preventing bullet setback during feeding cycles in bolt-action rifles.
Technical Specs
- Caliber: .257 Roberts (.257 Rob)
- Die configuration: 3-die set (sizing, seating, crimping)
- Threading: Standard 7/8"-14 TPI
- Construction: Heat-treated alloy steel with carbide sizing ring
- Includes: Shell holder, powder dipper, instruction sheet
- Compatible with: All standard reloading presses
- Manufacturer: Lee Precision, USA
- Model: 90551 Pacesetter series
This die set represents proven reloading technology specifically engineered for the .257 Roberts cartridge dimensions and pressure requirements. The included components and detailed instructions enable both novice and experienced reloaders to produce accurate, consistent ammunition that maximizes this cartridge's inherent accuracy potential.