RCBS 30207 22 ARC Small Base Taper Crimp 2-Die Set

The RCBS 30207 22 ARC Small Base Taper Crimp Die Set delivers precision reloading capabilities for the increasingly popular 22 ARC cartridge. This two-die configuration combines full-length sizing with controlled bullet seating for consistent ammunition production. Small base sizing ensures reliable chambering in semi-automatic platforms where standard dies might fall short.

What Makes This Different

Small base dies size cases approximately 0.001-0.002 inches smaller at the base compared to standard full-length dies. This tighter sizing specification proves essential for 22 ARC ammunition intended for AR-15 platform rifles and other semi-automatic actions. The taper crimp seating die eliminates case mouth flare while maintaining proper bullet tension, resulting in ammunition that feeds reliably through magazine systems.

Key Features

• Small base full-length sizing die for enhanced case extraction and feeding
• Taper crimp bullet seating die with micrometer adjustment
• Heat-treated steel construction with precision-ground surfaces
• Standard 7/8-14 TPI threading fits all major reloading presses
• Includes carbide expander ball for smooth case neck expansion
• Shell holder #10 required (sold separately)
• Compatible with all 22 ARC brass manufacturers

Reloaders working with 22 ARC cartridges for precision shooting applications benefit from the consistent case dimensions these dies produce. The small base sizing proves particularly valuable when loading for gas-operated rifles where extraction timing demands precise case specifications. Match shooters report improved feeding reliability when switching from standard to small base dies for this cartridge.

Technical Specs

• Cartridge: 22 ARC (.224 caliber)
• Die type: Small base full-length sizing and taper crimp seating
• Thread specification: 7/8-14 TPI
• Material: Heat-treated alloy steel
• Finish: Black oxide coating
• Shell holder required: RCBS #10 (not included)
• Country of origin: United States
• Manufacturer warranty: Limited lifetime

This die set addresses the specific requirements of 22 ARC cartridge reloading where standard dies may produce cases too large for reliable function. Professional reloaders and competitive shooters choose small base dies when ammunition consistency directly impacts performance outcomes.