What shellholder do I need to use with the Redding 80547 die set?

The Redding 80547 30/378 Weatherby Magnum die set requires a Redding Shellholder #18 (Part #11018 or Competition Shellholder #11618), which is sold separately. Ensure you have the correct shellholder to securely lock the high-capacity brass into your reloading press.

Can I use this die set for other popular .30-calibre magnums like the .300 Win Mag or .300 PRC?

No, this die set is strictly engineered for the .30-378 Weatherby Magnum cartridge and is incompatible with other .30-calibre magnums due to distinct case dimensions and shoulder angles. Attempting to use it on different calibres will result in improperly formed brass and potential safety hazards.

Does this mechanical reloading tool require any electrical compliance certifications for use in Australia?

No, electrical compliance certifications such as 240V, SAA, or RCM ratings are not applicable to the Redding 80547. As a purely mechanical handloading tool, it does not require electrical power and is ready for setup on your workbench in Australian workshops or outback reloading rooms.

What precautions should I take when resizing .30-378 Weatherby Magnum brass with these steel dies?

Because the .30-378 Weatherby Magnum generates immense case expansion from its large powder capacity, you must use a high-pressure case resizing lubricant with this full-length steel die set. Running dry cases in Australian bench setups can easily result in stuck cases and damage to the decapping rod assembly.

Reloading Die Set - Redding 80547

The Redding 80547 30/378 Weatherby Magnum Full Length Steel Die Set is a precision two-die handloading kit engineered to return fired cartridge cases to factory SAAMI and C.I.P. dimensions. Manufactured from heat-treated alloy steel with polished internal surfaces, this mechanical reloading die set ensures smooth case extraction, uniform bullet alignment, and reliable chamber feeding for high-capacity magnum bolt-action rifles. It installs into standard single-stage or progressive reloading presses via universal 7/8"-14 thread bodies and operates without electrical requirements.

Key Features:

Full-Length Sizing Die: Includes a steel decapping rod assembly (Part #25307) and expander size button (Part #40307) to deprime fired cases, restore outer case dimensions, and set proper neck tension.
Precision Bullet Seating Die: Features an integrated bullet seating plug (Part #01079) and built-in roll crimp ring to align and seat .308" diameter bullets straight to the intended overall length.
Alloy Steel Construction: Heat-treated steel dies with hand-polished cavities withstand the extreme leverage required to resize large-volume magnum brass.
Universal Mounting: Utilises industry-standard 7/8"-14 threads to mount securely into compatible metallic reloading presses.
Polymer Storage Box: Ships in Redding's standard polymer die box with a total packaged weight of approximately 0.5 kg to 0.6 kg.

Product Specifications:

Manufacturer Part Number (MPN): 80547
Calibre: .30-378 Weatherby Magnum
Bullet Diameter Compatibility: .308" (7.82 mm)
Thread Standard: 7/8"-14 TPI
Sizing Die Part Number: 91547
Seating Die Part Number: 92547
Shellholder Required: Redding Shellholder #18 (Part #11018 or #11618, sold separately)
Operating Mechanism: Manual mechanical handloading (0V / 0W)
Total Packaged Weight: ~0.5–0.6 kg (1.1–1.3 lbs)

Who is the Redding 80547 30/378 Weatherby Magnum Full Length Steel Die Set for?

Extreme-long-range shooters — needing to full-length resize high-pressure .30-378 Weatherby Magnum bottleneck brass back to factory dimensions while maintaining precise bullet concentricity across standard 7/8"-14 threaded reloading presses.
Hunters firing high-capacity magnum rifles — requiring reliable chamber feeding and factory-spec cartridge overall lengths for .308" diameter hunting projectiles seated in large-volume .30-378 Weatherby Magnum bolt-action platforms.

Less suitable for: Handloaders resizing other .30-calibre cartridges such as .300 Winchester Magnum, .300 Weatherby Magnum, or .300 PRC, or those using shellholders other than the required Redding #18 pattern; these loaders require a calibre-specific full-length die set engineered for their exact shoulder angle and case geometry.

SKU	RD102760LP
Model #	80547
Brand	Redding
Shipping Weight	0.2000kg

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Redding 80547 30/378 Weatherby Magnum Full Length Die Set

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