Two-die reloading set for .338-378 Weatherby Magnum featuring full-length sizer with decapping unit and seater die with roll crimper. Brings cases to SAAMI minimum dimensions.
This two-die set provides everything you need to reload bottleneck cases for the powerful .338-378 Weatherby Magnum cartridge.
The sizer die brings your cases to SAAMI minimum cartridge dimensions for consistent, reliable reloading. It accomplishes three critical tasks:
The die incorporates precision venting to prevent case damage from trapped air and excessive lubricant buildup. Headspace is held to minimum tolerances, ensuring the case body length remains unchanged during the sizing process.
The included seater die features a built-in roll crimper that secures the bullet while seating it in a single operation. This integrated design improves consistency and reduces setup time.
RCBS manufactures these dies from proprietary die steel, engineered to withstand the pressures of magnum rifle cartridges. The result is a precision tool built to last through thousands of reloading cycles.