What dies are included in the Redding 350 Rem Magnum Deluxe Die Set (Model 84266)?

This three-die set includes a Full-Length Sizing Die with a decapping rod assembly and 0.358" size button, a dedicated Neck Sizing Die, and a Standard Bullet Seating Die featuring an integrated roll crimp capability. The set is built from heat-treated alloy steel with precision hand-polished internal surfaces to ensure smooth operation.

Will this die set work with my standard Australian reloading press?

Yes, all three dies feature the industry-standard 7/8"-14 thread, making them fully compatible with single-stage and turret presses commonly used in Australian reloading setups from brands like Redding, RCBS, Hornady, Lyman, and Lee. As purely mechanical equipment, electrical compliance and SAA/RCM certifications are not applicable.

What is the difference between using the included neck sizing die versus the full-length sizing die?

The neck sizing die sizes only the case neck and de-primes fired brass without working the case body, maintaining fire-formed dimensions for bolt-action rifles to extend brass life. The full-length sizing die restores cases to SAAMI minimum factory dimensions, which is recommended when chambering resistance becomes noticeable or when preparing reliable hunting ammunition for field use.

Are shellholders included in the 84266 die set?

No, shellholders are sold separately for this model. You will need to pair the die set with a compatible shellholder such as the Redding #6 Standard Shellholder or Redding Competition Shellholder to properly secure your .350 Remington Magnum brass during the reloading process.

350 Rem Magnum Die Set - Redding 84266

The Redding 350 Rem Magnum Deluxe Die Set is a precision three-die reloading system designed for handloaders working with the belted .350 Remington Magnum cartridge. Machined from heat-treated alloy steel with hand-polished internal surfaces, this set provides complete control over case sizing, de-priming, and projectile seating. It features industry-standard 7/8"-14 threading to ensure direct compatibility with standard single-stage and turret reloading presses. By including both a full-length sizing die and a dedicated neck sizing die alongside a bullet seating die, the set allows handloaders to tailor case preparation to specific hunting or target shooting requirements.

Key Features

Comprehensive Three-Die Configuration: Includes a full-length sizing die, a neck sizing die, and a standard bullet seating die with an integrated roll crimp function.
Chamber-Fitted Neck Sizing: The neck sizing die de-primes and resizes only the case neck, preserving fire-formed case body dimensions, maintaining concentricity, and extending brass life.
Full-Length Restoration: The full-length sizer returns cases to SAAMI minimum factory dimensions, ensuring smooth feeding in field conditions, mixed brass batches, or varying actions.
Integrated Roll Crimp: The seating die accommodates 0.358-inch projectiles and allows reloaders to seat and roll-crimp bullets in a single stroke or as a separate step.

Product Specifications

Cartridge Compatibility: .350 Remington Magnum
Projectile Diameter: Nominal 0.358-inch (0.358")
Die Threading: Standard 7/8"-14 thread
Die Set Contents: Full-length sizing die (with 0.358" expander button and decapping pin assembly), neck sizing die, bullet seating die with roll crimp
Shellholder Compatibility: Redding #6 standard shellholder or competition shellholder (sold separately)
Material: Heat-treated alloy steel with hand-polished interiors
Total Weight: Approximately 0.65 kg to 0.70 kg (including storage box)

Who is the Redding 350 Rem Magnum Deluxe Die Set for?

Bolt-Action Handloaders — requires fire-formed brass preservation for bolt-action rifles firing .350 Remington Magnum cartridges, utilizing the dedicated neck sizing die to resize only the case neck while seating 0.358-inch projectiles using standard 7/8"-14 threaded presses.
Big Game Hunters — requires 100% reliable cycling in the field by utilizing the 3-die set's full-length sizing die to return .350 Remington Magnum cases to SAAMI minimum dimensions before seating and roll-crimping 0.358-inch hunting bullets.

Less suitable for: Non-belted cartridges or alternate .35-calibre cases such as .35 Whelen and .358 Winchester, lever or semi-automatic actions requiring full-body sizing across different firearms (where neck-sized brass causes feed jams), or benchrest reloaders requiring micro-inch neck tension adjustments without an expander ball, who require a specialized bushing-style neck sizing die set.

SKU	RD41941LP
Model #	84266
Brand	Redding
Shipping Weight	1.0000kg

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Redding 84266 Deluxe Die Set 350 Rem Magnum 3-Die Steel

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