The RCBS Lube-A-Matic Bullet Sizing Die .309 (Model: 82212) is a precision-machined, hardened-steel reloading accessory engineered for cast bullet shooters. This mechanical, non-electric tool is designed to drop directly into compatible cast-bullet lubrisizers to size cast lead bullets down to a uniform diameter of exactly .309 inches. Operating via a single manual press stroke, the die simultaneously sizes the bullet, injects lubricant directly into the grease grooves through integrated side-ports, and crimps gas checks onto the bullet base.

Key Features

• Hardened Steel Construction: Machined with a hardened interior to maintain strict concentric alignment, preventing bullet distortion during the sizing process.
• One-Step Processing: Integrates bullet sizing, lubrication injection, and gas check seating into a single down-and-up mechanical stroke.
• Clean Lubrication Ports: Features side-ports that align with the lubricant reservoir of the host press to cleanly fill grease grooves without mess.
• Cross-Brand Compatibility: Shares standardized exterior dimensions, allowing it to fit interchangeably across multiple major brands of lubrisizers.

Specifications

• Brand: RCBS
• Model/Part Number: 82212 (R82212)
• Sizing Diameter: .309 inches
• Material: Hardened steel
• Power Requirements: None (strictly mechanical operation)
• Host Compatibility: RCBS Lube-A-Matic, Lube-A-Matic-2, Lyman 450, and Lyman 4500 bullet sizers/lubricators

Who is the Rcbs Lube-A-Matic Sizer .309 for?

• Cast bullet reloaders targeting .30-caliber rifle cartridges — requires a finished bullet diameter of exactly .309 inches to achieve optimal throat fitment and accuracy in popular rifle barrels such as the .308 Winchester, .30-30 Winchester, and .30-06 Springfield when using this dedicated bullet sizing die.

Less suitable for: high-volume ammunition producers, as this single-stroke bullet sizing die processes only one projectile at a time and can be slowed down by cold workshop temperatures affecting lube viscosity; high-capacity operations are better served by high-speed liquid tumble-lubing setups or dedicated bulk powder coating systems.