What powder measure models is the Redding 03313 Pistol Metering Chamber compatible with?

This metering chamber is designed specifically to fit standard Redding Model 3 Powder Measures only. Please note that it will not fit Match-Grade Model 3BR or Competition series powder measures, which require part number 03331 instead.

What is the precise grain capacity range for this pistol metering chamber, and when should I switch to a universal chamber?

The Model 3313 is built for a metering range of 0 to 10 grains, with optimal performance cited between 0.5 and 10 grains, making it ideal for small to medium handgun calibers like 9mm Luger and .45 ACP. If you need to throw charges above 10 grains for larger cartridges, you must switch to the Redding Universal Metering Chamber (Part #03312).

Does this mechanical reloading tool require any Australian electrical certifications or RCM approval?

As a fully mechanical reloading accessory operated manually on your bench, the Redding Model 3 Pistol Metering Chamber requires no electrical power, plugs, or wiring. Therefore, it does not require SAA approval or RCM certification and is fully compliant for import and use across all Australian states.

How do I easily return to exact powder charge settings between different reloading sessions?

The chamber features a built-in reference setting micrometer with graduated markings on the front. This allows you to record your exact micrometric settings for specific pistol loads and reliably dial them back in during subsequent reloading sessions.

Pistol Metering Chamber - Redding 03313

The Redding Model 3 Pistol Metering Chamber (MPN: 03313) is a precision-machined steel reloading accessory designed to replace or supplement the standard chamber in a Redding Model 3 Powder Measure. Operating entirely via manual mechanical adjustment without the need for electrical power, this metering chamber provides fine-increment volumetric powder dispensing specifically engineered for low-capacity handgun cartridges. It incorporates graduated micrometer reference markings on the front face, allowing reloaders to record exact volumetric settings for individual handgun recipes and return to those positions across different reloading sessions.

Key Features

Targeted Low-Charge Metering: Designed for throwing small powder charges with a functional metering range of 0 to 10 grains, achieving optimal volumetric performance between 0.5 and 10 grains.
Graduated Reference Markings: Features clear micrometer markings on the chamber body to simplify logging and resetting precise charge volumes.
Precision Steel Construction: Machined from solid steel with a unit shipping weight of approximately 0.370 lb (168 g) to maintain structural rigidity on the reloading bench.
Smokeless Propellant Compatibility: Engineered to meter standard smokeless powder types, including flake, ball, and extruded/stick propellants.
Dedicated Hardware Fit: Specifically compatible with standard Redding Model 3 Powder Measures (not compatible with Match-Grade Model 3BR or Competition series measures).

Specifications

Manufacturer Part Number (MPN): 03313
Material: Precision-machined steel
Weight: Approximately 0.370 lb (168 g)
Metering Range: 0 to 10 grains (optimal performance at 0.5 to 10 grains)
Operation: Manual mechanical / bench-mounted
Propellant Compatibility: Smokeless powders (extruded, ball, flake)
Hardware Compatibility: Standard Redding Model 3 Powder Measure only

Who is the Redding Model 3 Pistol Metering Chamber for?

Handgun reloaders loading small to medium calibers — requires precise low-volume powder dispensing within a 0.5 to 10 grain operating window to prevent pressure and velocity spikes in cartridges like 9mm Luger, .380 ACP, .38 Special, and .45 ACP using this specialised metering chamber.
IPSC competitors — relies on the 0 to 10 grain charge capacity and graduated micrometer markings of this powder measure chamber to record and repeat exact charge volumes for consistent ballistic velocities across high-volume match ammunition batches.

Less suitable for: Handloaders dispensing powder charges above 10 grains or loading large-capacity rifle cases, who require a high-capacity universal metering chamber (5 to 100 grains capacity), or anyone loading black powder propellants.

SKU	RD41412LP
Model #	03313
Brand	Redding
Shipping Weight	1.0000kg

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Redding 03313 Model 3 Pistol Metering Chamber 10 Grain

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