Rcbs Full Length Die Set - 7.7x58 Jap Arisaka

The RCBS Full Length Die Set for 7.7x58 Jap Arisaka is a precision reloading tool engineered for shooters who demand accuracy from legacy and historical rifle cartridges. Whether you're a serious handloader, collector, or marksman restoring vintage Japanese military rifles to functional status, this die set provides the essential components needed to safely and consistently reload this bottleneck cartridge. Built on decades of RCBS engineering, it delivers the dimensional consistency required for safe chamber fit and reliable ballistic performance.

This full-length die set comprises a full-length sizer die with integrated expander-decapping unit and a seater die equipped with a bullet seater plug. The sizer die brings fired cases down to SAAMI minimum cartridge dimensions, ensuring uniform chamber fit and eliminating the risk of excessive headspace or case bulging—critical factors when working with surplus ammunition or older rifle chambers that may carry wear. The expander-decapping unit removes spent primers in a single operation, streamlining your reloading cycle. The precision seater die controls bullet seating depth to exacting tolerances, directly affecting velocity stability and accuracy.

This die set is indispensable for shooters with Type 38 or Type 99 Arisaka rifles seeking to reload economically while maintaining safety standards that factory ammunition alone cannot guarantee for older platforms. Hand loaders appreciate that the 7.7x58 cartridge, once relegated to surplus shooters, can now be reloaded with modern components to produce superior accuracy and reliability compared to decades-old stored ammunition. The compact dimensions and straightforward design integrate seamlessly into any progressive or single-stage press compatible with standard 7/8-14 threads, making it accessible to both established reloaders and those new to the Arisaka platform.