RCBS Expander/Decapper Unit – .375 Caliber The RCBS Expander/Decapper Unit in .375 caliber is a factory replacement part designed for use in bottleneck rifle cartridge sizing dies. It combines three critical functions in one assembly: expanding the case neck, removing spent primers, and maintaining concentricity during resizing. Key Features: Expander Rod + Ball + Decapping Pin: All-in-one unit for neck expansion and primer removal Precision Machined: Ensures tight tolerances and concentric alignment Durable Steel Construction: Built to withstand repeated use and high-pressure resizing Factory Replacement: Same unit shipped with RCBS sizing dies—ideal for replacements or spares Compatible Calibers: Designed for .375 H&H Magnum, .378 Weatherby Magnum, and similar .375-caliber bottleneck cartridges Specifications: Feature Details Caliber .375 (e.g., H&H, Weatherby) Components Expander rod, expander ball, decapping pin Material Hardened steel Compatibility RCBS sizing dies (bottleneck) Item Number 9822 Performance and Application This unit is essential for maintaining neck tension and primer pocket cleanliness during case prep. It’s especially useful for reloaders who want to keep a spare on hand in case of pin breakage or wear during high-volume sessions.

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RCBS Formula 1 Walnut Shell Media – Dry Case Cleaning Media (5 lbs) The RCBS Formula 1 Walnut Shell Media is a high-performance dry tumbling media designed to clean and polish brass cases efficiently. Made from 12/12 sieve ground walnut hulls, it’s ideal for use in both vibratory and rotary tumblers, including the RCBS Sidewinder. Key Features: 12/12 Sieve Walnut Shells: Optimized grit size for fast, effective cleaning Treated with Special Oxides: Enhances dirt removal and polishing action Dry Media Formula: Safe for brass and won’t leave residue Versatile Compatibility: Works with all major vibratory and rotary case tumblers Made in the USA: Trusted RCBS quality and consistency Specifications: Feature Details Media Type Treated Walnut Shell Sieve Size 12/12 Weight 5 lbs (2.27 kg) Use Dry tumbling for brass cleaning Compatibility RCBS Sidewinder, vibratory tumblers Performance and Application Perfect for reloaders prepping large batches of brass, this media removes carbon, grime, and oxidation while restoring a clean, polished finish. It’s especially effective before resizing or priming, and can be paired with polishing additives for extra shine.

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RCBS Flash Hole Deburring Tool – .22 Caliber The RCBS Flash Hole Deburring Tool (.22 Cal) is a precision case prep tool designed to remove burrs from the inside of flash holes, which can be left behind during manufacturing. These burrs can cause inconsistent ignition, so this tool helps improve shot-to-shot uniformity for precision reloaders. Key Features: Self-Centering Pilot Collar: Ensures accurate alignment with the flash hole Adjustable Stop: Prevents over-cutting and maintains consistent depth Case Pilot Stop: Holds brass securely to avoid wobble during use Caliber-Specific Pilot: Sized for .22 caliber cases Durable Construction: Built for long-term use with hardened steel components Specifications: Feature Details Caliber .22 Caliber Tool Type Flash Hole Deburring Tool Material Steel with adjustable collar Compatibility Most .22 cal centerfire cases Item Number 88145 Performance and Application Ideal for precision rifle reloaders, this tool enhances ignition consistency and accuracy by removing internal burrs that can disrupt powder burn. It’s especially useful for benchrest, F-Class, and long-range shooters who demand tight velocity spreads.

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RCBS .222 Remington Full-Length Sizing Die – Precision Case Resizing The RCBS Full-Length Sizing Die for .222 Remington is engineered to resize the entire case body and neck, restoring fired brass to factory dimensions. This ensures reliable chambering and extraction, especially important for semi-auto or multiple-rifle use. Key Features: Full-Length Resizing: Resizes case body and neck for universal chamber fit Decapping/Expander Assembly: Removes spent primers and restores neck tension Case-Hardened Steel Construction: Built for long-term precision and durability Standard 7/8"-14 Threading: Fits most single-stage and turret presses Compatible with RCBS Shell Holders: Uses standard shell holders (sold separately) Specifications: Feature Details Caliber .222 Remington Die Type Full-Length Sizing Die Material Case-hardened steel Thread Size 7/8"-14 Shell Holder Not included Performance and Application Ideal for reloaders using multiple rifles or semi-autos, this die ensures consistent chambering and case uniformity. It’s especially useful when paired with a seating die in a two-die set for complete case prep.

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RCBS .303 British Neck Sizing Die – Precision Reloading for Bolt-Actions The RCBS Neck Sizing Die for .303 British is designed to resize only the neck portion of fired cases, preserving the fire-formed fit to your rifle’s chamber. This results in improved accuracy, longer brass life, and reduced case stress—ideal for bolt-action rifles where brass is reused in the same firearm. Key Features: Neck-Only Resizing: Maintains chamber fit for enhanced precision Expander-Decapping Unit: Resizes the neck and removes spent primers in one step Case-Hardened Steel Construction: Built for durability and long-term use Standard 7/8"-14 Threading: Fits most single-stage and turret presses Made in the USA: Trusted RCBS quality and craftsmanship Specifications: Feature Details Caliber .303 British Die Type Neck Sizing Die Material Case-hardened steel Thread Size 7/8"-14 Shell Holder Not included Performance and Application Perfect for precision shooters and reloaders, this die is best used with brass fired in the same bolt-action rifle. It helps maintain consistent neck tension and bullet alignment, which are critical for accuracy in vintage military rifles like the Lee-Enfield.

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RCBS .308 Winchester Neck Sizing Die – Precision Reloading for Bolt-Actions The RCBS .308 Neck Sizing Die is engineered to resize only the neck of fired brass, preserving the fire-formed fit to your rifle’s chamber. This results in improved accuracy, longer brass life, and reduced working of the case—ideal for bolt-action rifles where the same brass is reused in the same firearm. Key Features: Neck-Only Resizing: Maintains chamber fit for enhanced precision Expander-Decapping Unit: Resizes the neck and removes spent primers in one step Case-Hardened Steel Construction: Built for durability and long-term use Standard 7/8"-14 Threading: Fits most single-stage and turret presses Made in the USA: Backed by RCBS’s reputation for quality Specifications: Feature Details Caliber .308 Winchester Die Type Neck Sizing Die Material Case-hardened steel Thread Size 7/8"-14 Shell Holder Not included Performance and Application This die is best suited for precision shooters and reloaders who want to maximize case life and accuracy. It’s especially effective when used with brass fired in the same bolt-action rifle. The die includes an expander-decapping unit and is compatible with standard RCBS shell holders.

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