If you're loading for the .30-378 Weatherby Magnum, you need dies built for a cartridge that demands precision and durability. The Hornady Custom Grade New Dimension Series IV Rifle 2-Die Set for .30-378 Wby is purpose-engineered for this powerful magnum caliber, delivering the meticulous control that serious long-range and magnum hunters expect. This set includes a full-length sizer die and a seater die, giving you the core tools to reload match-grade ammunition for your Weatherby rifle.

Hornady's Custom Grade dies are hand-inspected and heat-treated, with a polished mirror finish designed to protect your brass—cases never get scratched by the die walls. The sizer die features a Zip-Spindle design that eliminates spindle slippage and ensures dead-straight alignment in your press. The seating die uses a sliding in-line system with an alignment sleeve that centers each bullet vertically in the case neck, critical when you're working up loads for long-range accuracy. A polished elliptical expander handles case-neck work smoothly while reducing friction and case-neck stretching—a real advantage when you're reloading premium brass for a cartridge as demanding as the .30-378 Wby.

The seater die features an all-steel adjustment screw with a compression washer for fine-tuning bullet seating depth, and Sure-Loc rings make repeatable adjustments straightforward. A built-in crimper lets you crimp loads without purchasing a separate die. The sturdy steel decapper handles spent primers cleanly, and a retainer ring keeps everything organized during cleaning. Your dies ship in a storage box, so you can keep them fully adjusted and ready to go between sessions.

If you're loading for the .30-378 Weatherby Magnum, you need dies built for a cartridge that demands precision and durability. The Hornady Custom Grade New Dimension Series IV Rifle 2-Die Set for .30-378 Wby is purpose-engineered for this powerful magnum caliber, delivering the meticulous control that serious long-range and magnum hunters expect. This set includes a full-length sizer die and a seater die, giving you the core tools to reload match-grade ammunition for your Weatherby rifle.

Hornady's Custom Grade dies are hand-inspected and heat-treated, with a polished mirror finish designed to protect your brass—cases never get scratched by the die walls. The sizer die features a Zip-Spindle design that eliminates spindle slippage and ensures dead-straight alignment in your press. The seating die uses a sliding in-line system with an alignment sleeve that centers each bullet vertically in the case neck, critical when you're working up loads for long-range accuracy. A polished elliptical expander handles case-neck work smoothly while reducing friction and case-neck stretching—a real advantage when you're reloading premium brass for a cartridge as demanding as the .30-378 Wby.

The seater die features an all-steel adjustment screw with a compression washer for fine-tuning bullet seating depth, and Sure-Loc rings make repeatable adjustments straightforward. A built-in crimper lets you crimp loads without purchasing a separate die. The sturdy steel decapper handles spent primers cleanly, and a retainer ring keeps everything organized during cleaning. Your dies ship in a storage box, so you can keep them fully adjusted and ready to go between sessions.