The Redding Precise Machining Neck Sizing Die for .240 Weatherby Magnum (Model: 81232) is a dedicated reloading die designed to resize only the neck of fire-formed cartridge brass. By working solely the neck area while leaving the cartridge body and shoulder dimensioned to the rifle's chamber, this die preserves fire-formed internal case capacity, extends brass life, and maintains concentricity. Machined from alloy steel and finished to SAAMI tolerances, it incorporates an internal decapping rod assembly to deprime spent primers and expand the case neck in a single operation.

Key Features

• Targeted Neck Sizing: Resizes only the neck of .240 Weatherby Magnum brass to maintain custom chamber fit and reduce brass fatigue on the case body and shoulder.
• Integrated Decapping and Expanding: Features Decapping Rod Assembly #34242 with an integrated expander button (#39242 / #42242) and decapping pin (#01060) to deprime and set internal neck dimensions simultaneously.
• Precision Machining: Turned from alloy steel on precision lathes, heat-treated in atmospheric furnaces, and hand-polished for smooth cycling.
• Reduced Trimming Requirements: Minimises brass stretching across the case body, significantly lowering the frequency of case trimming.

Specifications

• Calibre Compatibility: .240 Weatherby Magnum (.243" / 6mm bullet diameter)
• Die Thread Standard: 7/8"-14 threads
• Shellholder Compatibility: Redding Shellholder #1 (Part #11001) or Competition Shellholder #1 (Part #11601)
• Packaged Weight: Approximately 200 g to 250 g
• Operating Requirements: Standard mechanical reloading press with 7/8"-14 thread pitch; external case neck lubrication

Who is the Redding Neck Sizing Die for .240 Weatherby Magnum for?

• Precision Handloaders: Secures maximum accuracy by sizing only the neck of .243" (6mm) diameter cases, maintaining the fire-formed body dimensions established by a specific bolt-action rifle chamber using industry-standard 7/8"-14 threads.
• Hunters Reloading Dedicated Fire-Formed Brass: Extends cartridge life and reduces trimming frequency by working only the neck area of .240 Weatherby Magnum brass intended exclusively for re-use in the exact same rifle chamber.

Less suitable for: Reloading brass intended for multiple firearms, semi-automatic rifles, lever-action rifles, or brand-new factory cases, as well as cases that chamber stiffly after 3 to 5 reload cycles; these conditions require a full-length sizing die or a dedicated body die to return the shoulder and body back to factory SAAMI dimensions.