With Lyman's upgraded sizing dies, reloaders gain the advantage of 90-degree lube hole spacing that improves lubrication flow and coverage-even with thick, modern lubes-without clogging or inconsistent application. The interior is heat-treated for wear resistance and precision-machined to maintain bullet symmetry while the tapered entry promotes easy seating and proper alignment. Sized in accordance with industry-recommended diameters for nearly every popular caliber, these dies deliver reliable, repeatable results. To complete the system, Lyman's top punches are engineered to precisely fit bullet noses, ensuring distortion-free shaping and enhancing downrange performance through exact bullet uniformity. Constructed with high-grade hardened steel for maximum strength and resilience The tapered mouth design improves feeding and reliability in your firearm 90 degree lube holes facilitate optimal lubrication for smooth mechanical operation Compatible with RCBS punches for versatile reloading options