RCBS 28007 Small Base Taper Crimp Die Set 6mm ARC Reloading Dies

The RCBS 28007 Small Base Taper Crimp Die Set delivers precise ammunition reloading for 6mm ARC cartridges with enhanced case sizing capabilities. This professional-grade die set addresses the unique requirements of semi-automatic rifles chambered in 6mm ARC, ensuring reliable feeding and extraction through tighter tolerances than standard full-length sizing dies.

What Makes This Different

Small base dies reduce case dimensions approximately 0.003-0.005 inches more than standard full-length dies, creating ammunition that chambers smoothly in semi-automatic actions. The taper crimp design removes case mouth flare while maintaining proper bullet tension without the sharp shoulder crimp that can cause feeding issues. This combination proves essential for AR-15 platform rifles and other semi-automatic firearms where consistent chambering under rapid fire conditions matters most.

Key Features

• Small base sizing die reduces case body diameter for reliable semi-auto feeding
• Taper crimp seating die eliminates case mouth flare while preserving bullet retention
• Heat-treated steel construction with precision-ground surfaces for dimensional accuracy
• Standard 7/8-14 threads fit all major reloading presses
• Includes lock rings and detailed reloading instructions
• Compatible with 6mm ARC brass from all manufacturers
• RCBS lifetime warranty covers manufacturing defects

Reloaders working with 6mm ARC ammunition for precision rifle competitions and hunting applications benefit from the consistent case preparation these dies provide. The small base sizing ensures cases extracted from hot chambers will resize properly for subsequent reloading cycles. Match shooters report improved accuracy consistency when using properly sized cases that chamber with uniform headspace. The taper crimp maintains bullet concentricity while providing adequate case neck tension for consistent powder burn and velocity.

Technical Specs

• Caliber: 6mm ARC (6mm Advanced Rifle Cartridge)
• Thread specification: 7/8-14 TPI standard
• Die material: Heat-treated alloy steel
• Finish: Black oxide coating
• Set includes: Full-length small base sizing die and taper crimp seating die
• Manufacturer: RCBS (Rock Chucker Bullet Swage)
• Country of origin: United States
• Warranty: RCBS lifetime warranty

Reloaders seeking maximum reliability from their 6mm ARC ammunition will find this die set addresses the specific challenges of loading for semi-automatic platforms. The precision manufacturing and small base design eliminate common feeding issues while maintaining the accuracy potential that makes 6mm ARC popular among competitive shooters and hunters.