Lee Precision 90883 RGB 2-Die Set 8x57 Mauser Reloading Dies

The Lee Precision 90883 RGB 2-Die Set delivers precision reloading capabilities for 8x57 Mauser cartridges with Lee's proven full-length sizing and bullet seating technology. This RGB (Red, Green, Blue) coded die set ensures consistent ammunition production for the classic European military cartridge.

What Makes This Different

Lee's RGB die sets feature color-coded components that eliminate confusion during setup and die changes. The full-length sizing die includes Lee's patented collet neck sizing system that extends brass life by up to 300% compared to conventional sizing methods. Each die undergoes precision machining to SAAMI specifications with tolerances held to ±0.001 inches.

Key Features

• Full-length sizing die with collet neck sizing extends brass life significantly
• Bullet seating die with built-in crimp adjustment for consistent bullet depth
• RGB color coding system prevents die mix-ups in multi-caliber setups
• Heat-treated steel construction with corrosion-resistant finish
• Standard 7/8-14 threading fits all major reloading presses
• Includes shell holder and powder dipper for complete setup
• Factory-honed interior surfaces ensure smooth case extraction

The 8x57 Mauser cartridge requires precise sizing to maintain the correct headspace and shoulder angle critical for safe chambering in military surplus rifles. This die set handles both commercial brass and military cases, accommodating the slight dimensional variations found in surplus ammunition. The seating die provides exact bullet depth control essential for achieving consistent accuracy with the 8x57's long, tapered case design.

Technical Specs

• Caliber: 8x57 Mauser (8x57mm JS)
• Die Type: 2-die set (full-length sizing and bullet seating)
• Threading: 7/8-14 TPI standard
• Material: Heat-treated alloy steel
• Finish: Black oxide coating
• Includes: Shell holder, powder dipper, instructions
• Manufacturer: Lee Precision, USA
• Model: RGB 90883

Lee Precision's reputation for producing reliable, affordable reloading equipment makes this die set a practical choice for 8x57 Mauser enthusiasts. The RGB coding system and included accessories provide everything needed to start reloading this classic European cartridge with professional results.