RCBS Steel .333 Neck Bushing

• Precise neck tension control: The .333 steel bushing lets reloaders fine-tune case neck sizing for more consistent bullet grip, which helps support uniform start pressure and repeatable accuracy.
• Made for interchangeable bushing dies: This bushing is designed for RCBS Gold Medal and MatchMaster series bushing dies, giving a simple way to tailor neck sizing without changing the entire die setup.
• Hardened steel construction: The steel build is suited to repeated sizing cycles, helping the bushing maintain its dimensions over time for dependable reloading results.
• Useful for precision load development: Changing bushing size in small increments makes it easier to match neck tension to a specific brass lot, bullet diameter, or rifle chamber.
• Made in the USA: Domestic manufacture and RCBS’s long focus on reloading equipment make this a practical fit for established bench and loading-room setups.

About the Steel Neck Bushings Series

RCBS Steel Neck Bushings are part of the company’s precision reloading system for shooters who want more control than a fixed-dimension sizing die can provide. Used with RCBS Gold Medal and MatchMaster bushing-style dies, these interchangeable bushings allow the reloader to adjust neck sizing in small steps instead of being locked into a single internal diameter. That makes the series especially relevant for precision rifle reloading, where neck tension is often tuned to a particular bullet, brass lot, or chamber.

The series is aimed at reloaders building ammunition for benchrest, long-range, and accuracy-focused hunting rifles. Rather than changing the whole die body, the bushing system lets the user alter one critical variable quickly and economically. The hardened steel construction suits repeated use on the loading bench, while the broad size range gives flexibility when working across different calibers and neck-wall thicknesses. In practical terms, the Steel Neck Bushings series is about giving the handloader a more deliberate way to manage bullet retention and case-neck sizing consistency.

About the RCBS Steel .333 Neck Bushing

The RCBS Steel .333 Neck Bushing is intended for reloaders who want a specific neck-sizing dimension for cartridges using bushing-style sizing dies. Its .333 inch size makes it a targeted component rather than a general accessory: the point is to select the bushing that delivers the desired amount of neck tension for a particular case and bullet combination. That matters because neck tension influences how consistently a bullet is released, which in turn affects ignition behavior and shot-to-shot uniformity.

As a case preparation accessory, this bushing fits into a workflow focused on refining ammunition rather than simply assembling it. It is especially useful when brass thickness varies between manufacturers or lots, or when a shooter is testing different tension levels to balance reliable bullet hold with smooth seating. Because it is a steel neck bushing, it is suited to repeated use and to reloaders who want a straightforward, durable component for regular bench work.

For practical use, the advantage of this model is its simplicity: instead of replacing a die or accepting a one-size-fits-all result, the reloader can install the .333 bushing and size the case neck to a chosen dimension within an RCBS bushing-die setup. That makes it a useful component for careful load development, accuracy tuning, and maintaining consistency across batches of rifle ammunition.

About RCBS

RCBS was founded in 1943 by Fred T. Huntington in Oroville, California. The company name came from “Rock Chuck Bullet Swage,” the original bullet-swaging die that started the business. RCBS has long specialized in ammunition handloading and reloading equipment for rifle and pistol cartridges, with product lines that include dies, shell holders, powder measures, priming tools, and reloading presses.

RCBS manufactures reloading tools in Oroville, California, and its lineup covers single-stage, turret, and progressive presses for different loading volumes and workflows. In 2024, RCBS became a brand of Hodgdon Powder Company after its sale by Revelyst. Across its catalog, RCBS is known for building practical tools for reloaders who want repeatable ammunition assembly and more control over each stage of the process.

Main Features

• Product type: Steel neck bushing
• Category: Reloading / Die Bushings
• Accessories for: Case preparation
• Bushing size: .333.00 inch
• Color: Silver
• Made in: USA

Warranty

2 years. RCBS lists this product with a 2-year warranty, providing defined coverage for this accessory rather than an open-ended warranty term.