RCBS 0.287" Neck Bushing

Engineered for use with RCBS gold medal match series dies, these interchangeable and self-centering neck bushings let reloaders fine-tune neck tension for peak performance. By minimizing brass deformation at the neck, they help preserve case life and boost accuracy. These bushings work best with high-end brass that has consistent neck wall thickness. The correct size can be calculated by subtracting 0.002 - 0.003 inches from a loaded cartridge's outside neck diameter or by doubling the neck wall thickness, adding the bullet diameter and subtracting 0.001 inches. Keeping a range of sizes on hand ensures optimal results. Proudly made in the USA for superior quality and reliability