RCBS Steel .318 Neck Bushing

• Precise neck tension control: The .318 steel bushing lets handloaders fine-tune case neck grip on the bullet, helping produce more consistent start pressure and more uniform ammunition.
• Self-centering design: RCBS steel neck bushings are built to center themselves in compatible dies, which helps the case neck align more naturally during sizing and supports better concentricity.
• Hardened steel construction: A steel bushing stands up well to repeated sizing cycles, making it a practical choice for reloaders who process brass regularly and want repeatable results over time.
• Made for bushing-style rifle dies: This bushing is intended for use with compatible RCBS MatchMaster and Gold Medal neck bushing rifle dies, giving reloaders a simple way to tailor neck sizing to a specific brass lot or load.
• Useful for load development: Changing bushing size is an efficient way to test different neck tension setups without replacing the entire die, which is especially helpful when refining precision rifle ammunition.

About the Steel Neck Bushings Series

The RCBS Steel Neck Bushings series is part of the company’s precision reloading range for shooters who want more control than a fixed-dimension sizing die can provide. These bushings are used with compatible RCBS MatchMaster and Gold Medal bushing-style rifle dies, where they allow the reloader to select the amount of neck sizing that best suits a particular cartridge, bullet, and brass lot. That flexibility matters in precision handloading because neck tension plays a direct role in bullet release, consistency, and overall ammunition uniformity.

Within the RCBS lineup, the Steel Neck Bushings series serves reloaders focused on careful load tuning rather than general-purpose bulk production. The design philosophy is straightforward: use a durable steel bushing in a changeable, self-centering format so the die can be adapted without replacing the whole tool. This makes the series especially relevant for long-range and accuracy-oriented rifle loading, where small changes in brass preparation can affect results on target. The broad size range also lets reloaders keep several bushings on hand and adjust their setup as brass thickness, turning, or preferred neck tension changes.

About the RCBS Steel .318 Neck Bushing

The RCBS Steel .318 Neck Bushing is a caliber-specific reloading accessory intended for precision case sizing in compatible RCBS bushing dies. Its .318 diameter gives the reloader a defined sizing dimension for the case neck, making it easier to tune bullet retention to the brass and load being used. In practical terms, that means more deliberate control over how firmly the neck holds the bullet, which can help support consistent ignition behavior and more uniform loaded ammunition.

This model is best suited to reloaders who sort brass carefully, monitor neck wall variation, and want the option to refine neck tension instead of relying on a one-size-fits-all die interior. Because it is a separate bushing rather than a fixed die body, it also makes load development more efficient: changing neck sizing dimensions is faster and less expensive than changing complete dies. The steel construction is well suited to repeated use on the loading bench, while the self-centering bushing format used by RCBS helps the case neck align properly during sizing. For precision rifle handloading, that combination of repeatable sizing, durable steel construction, and compatibility with MatchMaster and Gold Medal die systems makes this bushing a practical component in a more controlled brass-preparation workflow.

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. Over time, RCBS grew into a specialist in ammunition handloading equipment for both rifle and pistol cartridges, with a product range that includes presses, dies, shell holders, powder measures, and priming tools.

RCBS remains closely associated with reloading equipment and still manufactures reloading tools in Oroville, California. Its lineup covers single-stage, turret, and progressive reloading presses, reflecting a focus that ranges from careful bench loading to higher-output workflows. In 2024, RCBS became a brand of Hodgdon Powder Company after its sale by Revelyst. For products such as neck bushings and die components, RCBS is known for practical, bench-oriented tools built around repeatability and compatibility within its wider reloading system.

Main Features

• Manufacturer: RCBS
• Product type: Steel neck bushing
• Accessories for: Case preparation
• Bullet Diameter (inch).: 318.00 inch
• Color: Silver
• Made in: USA

Warranty

This product is covered by a 2-year warranty.