RCBS Full Length Die Set - Group A - Popular Rifle Cartridge .340 Wby

The RCBS Full Length Die Set for .340 Wby (Group A) is a precision two-die reloading system designed for handloaders working with popular bottleneck rifle cartridges. This set combines a full-length sizer die with an integrated expander-decapping unit and a seater die with bullet seater plug, delivering the precision and consistency demanded by serious rifle ammunition reloaders.

The full-length sizer die brings fired cases to SAAMI minimum cartridge dimensions, sizing the case exterior, removing the spent primer, and expanding the neck to safely accept the loaded bullet. Precision headspace is held to minimum tolerances to prevent excessive variance that could degrade accuracy or create safety issues. Integral vents in the die design prevent case damage from trapped air and lubricant buildup—a critical feature that protects your brass investment during the sizing stroke. The seater die delivers consistent bullet seating depth, the foundation of reliable ballistic performance across your reloaded ammunition.

Handloaders working with .340 Weatherby Magnum ammunition—whether for long-range hunting, precision rifle training, or competitive shooting—depend on die sets that maintain tight tolerances and protect their brass through multiple reloading cycles. The RCBS Group A configuration pairs proven sizing and seating geometry with the build quality RCBS has established across decades of reloading equipment manufacturing. This die set is the foundation for repeatable, accurate ammunition production from your bottleneck magnum cases.