Will the Redding 45-70 Government Neck Sizing Die work if I swap my brass between multiple different rifles?

No, neck sizing is not recommended for brass swapped between multiple different rifles. This die is specifically engineered to resize only the neck while leaving the fire-formed brass body custom-fit to the chamber of the exact same rifle, ensuring improved accuracy and extended brass life.

What shellholder do I need to use with the Redding 81209 neck sizing die on my reloading press?

This die utilizes a standard Redding Shellholder #18 (Part #11018). It features an industry-standard 7/8"-14 threaded reloading die body profile, making it fully compatible with standard single-stage and turret reloading presses.

Is this reloading die suitable for rapid-cycling lever-action hunting rifles in the Australian bush?

Neck sizing is generally not recommended for autoloading, pump-action, or rapid-cycling lever-action rifles intended for hunting or defensive use where ultra-smooth, guaranteed chambering is critical under field conditions. For those applications, a Full-Length Sizing Die is typically required to ensure flawless cycling in the outback.

45-70 Neck Sizing Die - Redding 81209

The Redding 45-70 Government Neck Sizing Die is a precision reloading tool engineered to resize only the neck of .45-70 U.S. Government cartridge cases while leaving the fire-formed body unchanged. Machined from heat-treated, case-hardened alloy steel, this die prevents overworking the brass, which extends case life and maintains concentric alignment with the rifle's chamber. Built to industry-standard 7/8"-14 threads, it integrates a decapping rod assembly to remove spent primers and an expander button calibrated for standard .458-calibre projectiles. It also accommodates straight or slightly tapered .45-90 Government cases.

Key Features

Neck-Only Sizing: Resizes only the neck portion to provide proper bullet tension while preserving the fire-formed body dimensions for improved chamber alignment.
Extended Case Life: Reduces brass fatigue and stretching by eliminating repetitive full-length resizing of the case walls.
Integrated Decapping and Expanding: Features an internal decapping assembly to punch spent primers and an expander button to set consistent internal neck diameter for .458-calibre bullets.
Standard Press Interface: Features standard 7/8"-14 threading for seamless operation on standard single-stage and turret reloading presses.

Specifications

Product Model: 81209
Calibre Compatibility: .45-70 U.S. Government (also accommodates .45-90 Government)
Bullet Diameter: .458 calibre
Die Thread Size: 7/8"-14 standard thread
Shellholder Requirement: Redding Shellholder #18 (Part #11018)
Material: Case-hardened, heat-treated alloy steel
Operation: Manual bench-mounted reloading tool

Who is the Redding 45-70 Government Neck Sizing Die for?

Australian precision target shooters running custom .45-70 loads — requires a neck sizing die that threads into standard 7/8"-14 presses to maintain exact fire-formed case dimensions for .458-calibre bullets in a single match chamber.
Lever-action silhouette competitors using fire-formed brass — provides consistent neck tension across .45-70 Government cases using Redding Shellholder #18 without overworking the brass between repeated firings in the same rifle.
Hunters reloading bespoke .45-70 ammunition for bolt-action or single-shot rifles — uses a dedicated 7/8"-14 threaded neck sizing die to maximise accuracy and case longevity for high-pressure or specialised single-rifle loads.

Less suitable for: Reloaders preparing ammunition for autoloading, pump-action, or rapid-cycling lever-action hunting rifles, or brass shared across multiple different firearms; these applications require a full-length sizing die set to guarantee reliable chambering and cycling.

SKU	RD41908LP
Model #	81209
Brand	Redding
Shipping Weight	1.0000kg

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Redding 81209 45-70 Government Neck Sizing Die 7/8-14 Thread

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