RC BUSHING DIAMETER - 0.251

The RCBS RC Bushing Diameter 0.251 (SKU RC81566) is a precision reloading component engineered for shooters who demand consistency in case neck sizing. This bushing is a critical element in the RCBS bushing-style sizing die system, where it controls the inside diameter of the cartridge case neck to ensure repeatable ammunition dimensions and reliable chambering in your firearm.

The 0.251-inch diameter specification is designed for specific cartridge applications where precision neck sizing is essential. Bushing-style sizing dies allow reloaders to adjust neck tension independently of shoulder and body sizing, which translates directly to tighter load consistency and improved shot-to-shot velocity uniformity. This level of control is particularly valuable for handloaders working with match-grade ammunition, precision rifle loads, or competitive shooting scenarios where case-to-chamber fit directly impacts accuracy and feeding reliability.

RCBS bushings are manufactured to exacting tolerances and are interchangeable across the brand's bushing die platform, making this component a practical addition to any serious reloader's tool inventory. Whether you're fine-tuning loads for a precision bolt-action rifle, optimizing case longevity through selective sizing, or preparing ammunition for benchrest or long-range competition, the ability to control neck diameter with a dedicated bushing provides the mechanical advantage required for repeatable results. Weighing just 0.02 lbs, this compact component fits easily within standard reloading press setups.