Will the Redding 75139 body die resize the case neck or deprime my 7mm-08 Remington brass?

No, the Redding 75139 is strictly a body die featuring an open neck passage with no internal expander ball, decapping rod, or bushing mechanism. It is designed to full-length resize the case body and bump the shoulder without altering neck tension, meaning you will need a separate decapping tool and a neck-sizing die like the Redding 73291 0.291 Inch Neck Sizing Bushing for complete case preparation.

What reloading press thread size and shellholder are required to set up the Redding 75139?

The Redding 75139 body die features a standard 7/8"-14 thread pitch that fits all standard single-stage and turret reloading presses used by Australian reloaders. For proper case retention during the sizing operation, you will need to pair it with a Redding #1 Standard Shellholder (Part #11001) or a #11601 Competition Shellholder, which are sold separately.

Can I use this body die for parent .308 Winchester cases or other wildcat variants derived from the 7mm-08?

No, the operating envelope of the Redding 75139 is strictly limited to standard SAAMI-spec 7mm-08 Remington cases. It cannot be used for parent .308 Win cases, necked-down .243 Win cases, or other 7mm magnum and wildcat variants.

Are there any electrical compliance requirements or special maintenance needs for this tool in Australian workshop conditions?

Because the Redding 75139 is an entirely manual, non-powered mechanical steel reloading tool, electrical compliance ratings like 240V compatibility and RCM or SAA certifications do not apply. For maintenance in standard Australian workshop or bench environments, ensure cases are properly lubricated externally prior to sizing to prevent stuck cases, and keep the steel components lightly oiled during long-term storage to prevent rust.

7mm-08 Body Die - Redding 75139

The Redding 75139 Body Die is a dedicated reloading tool engineered specifically for 7mm-08 Remington cartridge cases. Designed with an open neck passage and no internal depriming rod or expander mechanism, this die resizes the cartridge body diameter and bumps the shoulder back to SAAMI specifications without touching or altering case neck tension. Constructed to mount on standard reloading presses, it operates mechanically without electrical requirements and restores smooth chambering to work-hardened, fire-formed brass.

Key Features

Shoulder and Body Resizing: Bumps the shoulder back and restores proper body diameter dimensions without contacting the case neck.
No Internal Mechanisms: Built without an expander ball, decapping pin, or sizing bushing to completely eliminate neck runout during the body sizing step.
Standard Thread Fitment: Machined with industry-standard 7/8"-14 threads to fit standard single-stage and turret reloading presses.
Companion Die Workflow: Functions alongside dedicated bushing neck dies, collet dies, or universal decapping dies to maintain precision neck tension regimes.

Specifications

Manufacturer Part Number (MPN): 75139
Calibre Compatibility: 7mm-08 Remington (.284 calibre bullet / SAAMI spec case)
Thread Interface: Standard 7/8"-14 thread
Compatible Shellholders: Redding #1 Standard Shellholder (Part #11001) or #11601 Competition Shellholder
Packaging Dimensions: Approximately 127 mm × 57 mm (5.0" H × 2.25" W)
Shipping Weight: Approximately 0.25–0.35 kg

Who is the Redding Body Die for 7mm-08 Remington for?

Accuracy-Focused Target Shooters — Requires controlling case concentricity and neck tension independently by using a dedicated body die that bumps the shoulder of 7mm-08 Remington brass across standard 7/8"-14 press threads without contacting the neck.
Hunters Running 7mm-08 Rifles — Restores reliable bolt closure and chambering using a specialised body die when repeated firings expand 7mm-08 Remington cartridge bodies beyond factory chamber dimensions.

Less suitable for: Reloaders seeking to form or size .308 Winchester, .243 Winchester, or 7mm magnum cases, or those requiring base reduction for tight semi-automatic chambers; full-length resizing dies, dedicated multi-calibre case forming dies, or small base body dies are required instead.

SKU	RD102303LP
Model #	75139
Brand	Redding
Shipping Weight	0.2000kg

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Redding 75139 Body Die 7mm-08 Remington 7/8-14 Thread

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