Will the Redding 19256 tapered size button fit in my standard Redding Full-Length Sizing Die decapping rod assembly?

Yes, this model is designed as a direct drop-in replacement that threads or slips directly onto standard Redding decapping stem assemblies. It allows you to upgrade from a standard elliptical expander to a gradual tapered design for smoother sizing operations. Ensure your die system utilises the traditional threaded expander rod configuration rather than a bushing-only Type-S setup without an expander ball.

Can I use this tapered size button to expand case necks starting from .17 or .20 calibre up to .25 calibre?

No, the Redding 19256 is specifically calibrated with an expansion range starting from .22 calibre (.224") up to final .25 calibre (.257"). If you are attempting to neck up from sub-.22 calibres such as .17 or .20, you will need intermediate sizing steps or a specialised multi-step expanding mandrel die to avoid splitting your brass case mouths.

What case lube should I use with the Redding 19256 expander button to prevent brass from sticking during wildcatting operations?

Proper case neck lubrication is critical to prevent friction and case sticking when expanding bottleneck cartridges from .22 to .25 calibre. We recommend pairing this operation with a reliable lubricant such as Redding Imperial Sizing Die Wax to ensure smooth movement and prevent shoulder buckling.

Does this mechanical reloading component require any electrical compliance certification for use in Australia?

No, the Redding 19256 is an entirely mechanical reloading die component and does not require 240V power, an Australian plug, or SAA/RCM regulatory electrical safety compliance. It is completely unrestricted for standard retail sale and use across all Australian states and territories as a general firearm reloading accessory.

Tapered Size Button - Redding 19256

The Redding Tapered Size Button From 22 To 25 Cal (MPN: 19256) is a precision-machined, heat-treated alloy steel reloading die component designed to expand bottleneck cartridge case necks smoothly from .22 calibre (.224") up to final .25 calibre (.257") dimensions. Built as a direct replacement for standard decapping assemblies in Redding Full-Length Sizing Dies and Neck Sizing Dies, it features an elongated, gradual taper that minimises neck-pull resistance, case stretching, and shoulder buckling during reloading.

Key Features

Gradual Taper Profile: Provides a continuous, smooth transition that steps case necks from .224" to .257" without collapsing the shoulder.
Precision-Machined Alloy Steel: Heat-treated construction ensures long-term wear resistance during repeated sizing and wildcat forming operations.
Direct Drop-In Fit: Mounts directly onto standard Redding decapping rod assemblies within full-length and neck sizing dies.
Manual Mechanical Operation: Requires no electrical power, functioning entirely through standard mechanical reloading presses with proper case neck lubrication.

Product Specifications

Brand: Redding Reloading Equipment
Manufacturer Part Number (MPN): 19256
Product Category: Reloading case neck expander button
Material: Heat-treated alloy steel
Starting Calibre: .22 calibre (.224")
Final Calibre: .25 calibre (.257")
Die Compatibility: Redding standard Full-Length Sizing and Neck Sizing decapping rod assemblies

Who is the Redding Tapered Size Button From 22 To 25 Cal for?

Wildcat Cartridge Handloaders — requires expanding donor .22-250 Remington or .223-based brass from an initial .224" neck diameter up to a finished .257" calibre wildcat dimension without collapsing the case shoulder, using an elongated tapered expander button.
Standard .25-Calibre Reloaders — needs smooth, reduced-drag neck expansion when reloading .25-06 Remington or .250 Savage cases using a dedicated .224" to .257" Redding expander button inside compatible Redding sizing dies.

Less suitable for: Handloaders starting from sub-.22 calibres such as .17" or .20", which require specialised multi-step expanding mandrel dies or intermediate sizing stages to prevent split case mouths, or those expanding necks up to .264" (6.5mm), .284" (7mm), or .308" calibres, which require distinct, calibre-specific tapered expander buttons.

SKU	RD41477LP
Model #	19256
Brand	Redding
Shipping Weight	1.0000kg

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Redding 19256 Tapered Size Button 22 To 25 Caliber Steel

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