RCBS 12501 Full Length 2-Die Set .257 Roberts Group A Reloading Dies

The RCBS 12501 Full-Length 2-Die Set delivers precision reloading capabilities for .257 Roberts cartridges with proven reliability that competitive shooters and hunters demand. This Group A die set combines RCBS's decades of manufacturing expertise with hardened steel construction to produce consistent, accurate ammunition reload after reload.

What Makes This Different

RCBS full-length sizing dies resize the entire cartridge case rather than just the neck, ensuring proper chamber fit and reliable feeding in any .257 Roberts rifle. The included bullet seating die features a built-in roll crimp mechanism that secures bullets without deforming the case mouth. Each die undergoes precision machining to tolerances within 0.002 inches, delivering match-grade consistency that neck-sizing-only dies cannot achieve.

Key Features

• Full-length sizing die resizes entire cartridge case for universal chamber compatibility
• Bullet seating die with integrated roll crimp for secure bullet retention
• Heat-treated steel construction withstands thousands of reloading cycles
• Standard 7/8-14 threading fits all major reloading presses
• Includes shell holder and detailed instructions for immediate setup
• Group A classification for standard cartridge dimensions and pressures
• Precision-machined to +/- 0.002 inch tolerances for consistent results

These dies excel in applications requiring maximum reliability and case life extension. Hunters appreciate the full-length sizing that ensures chambering in field conditions, while competitive shooters benefit from the consistent bullet seating depth that maintains accuracy across multiple firings. The hardened steel construction maintains dimensional stability through temperature variations and extended use.

Technical Specs

• Caliber: .257 Roberts
• Die Type: Full-length sizing and bullet seating
• Threading: 7/8-14 standard
• Construction: Heat-treated alloy steel
• Group Classification: A (standard pressure cartridge)
• Includes: Shell holder, instruction sheet, storage box
• Compatibility: Universal fit for standard reloading presses
• Manufacturer: RCBS (Rock Chucker Bullet Swager)
• Country of Origin: United States

This die set represents the standard that serious reloaders trust for .257 Roberts ammunition preparation. The combination of full-length sizing capability and integrated crimping functionality eliminates the need for additional dies while maintaining the accuracy standards that RCBS has delivered for over 75 years.