What shellholder do I need to use with the Redding 81226 .257 Weatherby Magnum neck sizing die?

This die requires a Redding #6 Shellholder (Part #11006) or a Redding Competition Shellholder (#11606) to properly secure your brass, which is sold separately. The die itself features standard 7/8"-14 thread pitch to fit nearly all common single-stage and turret reloading presses.

How often will I need to full-length size my .257 Weatherby Magnum brass when using this neck sizing die?

Because this die only resizes the neck and leaves the fire-formed body untouched to maximize case life and accuracy, cases will eventually begin to resist chambering. Handloaders typically find that after 3 to 5 firings, the brass will require a full-length sizing die or a shoulder-bump body die to ensure smooth bolt closure in your bolt-action rifle.

Does the Redding 81226 die require any specialised licensing or permits to purchase in Australia?

No specialised firearms licensing or import permits are required to purchase this reloading die in Australia, as it is classified as general non-powered workshop hardware. It is fully compliant for direct retail purchase across all Australian states and territories without needing electrical certifications like SAA or RCM.

Does this die allow for adjustable neck tension using interchangeable bushings?

No, the Redding 81226 is a conventional fixed-dimension neck sizing die equipped with a standard size button expander ball rather than a removable bushing system. If you require precise custom neck tension adjustments in 0.001-inch increments, you would instead need to step up to a bushing neck die such as the Redding Type S model.

Neck Sizing Die - Redding 81226

The Redding Neck Sizing Die For .257 Weatherby Magnum (MPN 81226) is a precision reloading tool engineered to resize only the case neck of fired bottleneck brass while simultaneously decapping spent primers. Manufactured from precision-machined, case-hardened alloy steel, it threads into standard reloading presses using industry-standard 7/8"-14 threads. By leaving the fire-formed case body and double-radius shoulder dimensions unchanged, this mechanical neck sizing die maintains custom fire-formed headspace alignment to a specific rifle chamber while preventing premature work-hardening on .257 Weatherby Magnum brass cases.

Key Features

Neck-Only Sizing: Resizes only the neck of the cartridge case and expands it using an internal expander ball (Part #39256) to maintain proper bullet retention without altering case body dimensions.
Simultaneous Decapping: Features an integrated decapping rod assembly (Part #35256) with a standard decapping pin to remove spent primers during the neck-resizing stroke.
Preserved Fire-Formed Fit: Leaves the fire-formed body and shoulder of the case intact, improving bullet-to-bore concentricity and maintaining chamber alignment.
Extended Brass Lifespan: Eliminates excessive working of the brass body and shoulder, extending the operational life of magnum cartridge cases.
Universal Press Mounting: Interfaces with single-stage and progressive reloading presses via standard 7/8"-14 thread pitch.

Specifications

Product: Redding Neck Sizing Die
Manufacturer Part Number (MPN): 81226
Calibre Compatibility: .257 Weatherby Magnum
Bullet Diameter: 0.257 in (6.53 mm)
Thread Pitch: 7/8"-14 standard mounting threads
Material: Case-hardened alloy steel
Required Shellholder: Redding #6 Shellholder (Part #11006) or Competition Shellholder (sold separately)
Internal Assemblies: Decapping rod assembly (#35256), expander button (#39256), decapping pin
Weight: Approximately 250 g to 350 g
Packaged Dimensions: Approximately 1.5 in W × 2.25 in H

Who is the Redding 81226 Neck Sizing Die For 257 Weatherby Magnum for?

Bolt-Action Precision Handloaders — Achieves consistent bullet-to-bore alignment in a single dedicated rifle by maintaining fire-formed chamber dimensions using standard 7/8"-14 thread pitch presses and a Redding #6 Shellholder for .257 Weatherby Magnum cartridges.
Magnum Cartridge Handloaders Seeking Brass Longevity — Extends the functional lifespan of .257 Weatherby Magnum cases by sizing only the 0.257 in (6.53 mm) neck zone, eliminating repeated work-hardening across the double-radius shoulder and body.

Less suitable for: Reloading brass intended for semi-automatic or lever-action actions, cases shared across multiple different rifles, or brass that has reached 3 to 5 firings and developed hard bolt closure; these conditions require a full-length sizing die or a dedicated shoulder-bump body die to restore factory body dimensions.

SKU	RD102469LP
Model #	81226
Brand	Redding
Shipping Weight	0.2000kg

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Redding 81226 Neck Sizing Die 257 Weatherby Magnum Steel

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