What are the exact dimensions and material benefits of the Redding 76313 bushing?

The Redding 76313 features a 0.313-inch inside diameter, a 1/2-inch outer diameter, and a 3/8-inch height. It is precision heat-treated to an approximate hardness of Rc 60-62 and finished with a gold-toned Titanium Nitride (TiN) coating, which significantly reduces sizing friction, prevents brass galling, and extends service life during high-volume reloading sessions.

Which reloading dies are compatible with this 1/2-inch neck sizing bushing?

This bushing freely interchanges across all Redding bushing-style dies, including Type S Bushing Neck Dies, Type S Full Length Dies, and Competition Neck Sizing Dies, as well as standard Wilson-style neck sizing dies. It is built strictly for industry-standard 1/2-inch OD bushing pockets and will not fit standard non-bushing sizing dies.

How do I determine if the 0.313-inch size is correct for my brass cartridge cases?

Redding specifies calculating your required bushing size by measuring the outside neck diameter of a loaded cartridge and subtracting 0.001 inches for turned necks, or 0.002 inches for unturned necks when using an expander ball. For this 0.313-inch model, your loaded cartridge outside neck diameter should measure approximately 0.314 to 0.315 inches for a proper fit.

Are there any specific Australian legal restrictions or compliance requirements for importing or owning this reloading tool?

No electrical compliance such as 240V or SAA/RCM certification is required, as this is a purely non-powered mechanical reloading component. It is completely unrestricted for sale, transport, and ownership across all Australian states and territories.

Neck Sizing Bushing - Redding 76313

The Redding .313 Titanium Nitride Neck Sizing Bushing (MPN 76313) is a precision reloading die insert engineered to size cartridge case necks to an exact dimension. Built from heat-treated steel with a base hardness of Rc 60–62, this bushing features a gold-toned Titanium Nitride (TiN) surface coating that minimizes friction, reduces sizing drag, and resists brass galling. It enables reloaders to regulate neck tension without overworking the brass, preserving case concentricity and extending brass service life across repeated firings.

Key Features

Precise Neck Sizing: Delivers an internal sizing diameter of 0.313 inches (7.950 mm) to maintain consistent neck tension on cartridge brass.
Titanium Nitride Coating: Enhances surface hardness and lubricity, reducing resistance during case insertion and extraction.
Universal Bushing Die Compatibility: Fits standard 1/2" outer diameter die cavities, interchanging freely across Redding Type S Bushing Neck Dies, Type S Full Length Dies, Competition Neck Sizing Dies, and standard Wilson-style neck sizing dies.
Precision-Finished Steel: Hand-polished heat-treated steel construction ensures smooth operation and prevents brass pickup.

Product Specifications

Manufacturer Part Number (MPN): 76313
Inside Diameter: 0.313 inches (7.950 mm)
Outer Diameter: 1/2 inch (12.7 mm)
Height: 3/8 inch (9.525 mm)
Material: Heat-treated steel (Rc 60–62 base hardness)
Finish: Titanium Nitride (TiN) coating
Die Cavity Interface: Industry-standard 1/2" OD bushing dies

Who is the Redding .313 Titanium Nitride Neck Sizing Bushing for?

Precision handloaders — requires a .313 inches inside diameter neck sizing bushing to achieve proper .001" to .002" neck tension on brass cases with a loaded outside neck diameter measuring .314" to .315".
Long-range target shooters — utilizes a 1/2" outer diameter TiN-coated neck sizing bushing to minimize sizing drag and maintain tight neck concentricity for uniform bullet release.
Benchrest shooters — relies on a 3/8" height bushing insert within bushing-style dies to size only the required portion of the neck, preventing excessive work-hardening and extending cartridge case life.

Less suitable for: Cartridge brass with loaded neck outside diameters outside the .314" to .315" range, or non-bushing sizing dies; reloaders with different neck measurements require alternative bushing sizes in appropriate .001" increments, while standard non-bushing dies require full-length or neck dies with fixed internal dimensions.

SKU	RD41820LP
Model #	76313
Brand	Redding
Shipping Weight	1.0000kg

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Redding 76313 Tin Neck Sizing Bushing .313 Inch

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