What parent brass can I use with the Redding 83215 Form & Trim Die?

This die is specifically designed for converting .30-06 Springfield family brass into standard .35 Whelen cases. It functions as an intermediate forming and rough-trimming step before final neck expansion and full-length sizing.

Will this die work for forming .35 Whelen Ackley Improved or .358 Winchester cases?

No, the Redding 83215 is strictly built for the standard .35 Whelen cartridge and cannot be used for the .35 Whelen Ackley Improved, .358 Winchester, or .350 Remington Magnum due to differing headspace and taper geometry.

Does this die fit standard Australian reloading presses?

Yes, the Redding 35 Whelen Form & Trim Die features an industry-standard 7/8"-14 TPI thread interface. It is fully compatible with all standard single-stage and turret reloading presses commonly used in Australia, such as those from Redding, RCBS, Hornady, Lyman, and Lee.

How do I trim brass using this die without wearing it out?

The top surface of the die is specially heat-treated and case-hardened alloy steel to resist damage when you use a flat mill bastard file. You simply insert the lubricated parent case, screw it in to chamber dimensions, and file excess brass flush with the top of the die.

Trim Die - Redding 83215 35 Whelen

The Redding .35 Whelen Form & Trim Die (MPN: 83215, Series B) is a specialised reloading tool engineered for converting parent cartridge cases into .35 Whelen (.35-06) and performing manual file-trimming. Precision-machined from case-hardened alloy steel, this die is cut to internal chamber dimensions rather than sizing dimensions. This profile allows handloaders to file excess neck length from extended brass without over-working the case body. Built with a standard 7/8"-14 TPI thread, it installs directly into conventional single-stage and turret reloading presses.

Key Features

Chamber-Dimension Machining: Allows brass cases to be inserted and file-trimmed without undergoing unnecessary full-length body sizing.
Intermediate Case Forming: Facilitates the progressive forming and rough-trimming of .30-06 Springfield parent brass into .35 Whelen brass prior to neck expansion and final sizing.
Hardened File-Trim Surface: Features a heat-treated, hardened top surface designed to withstand contact from standard flat hand files without tool damage.
Standard Press Interface: Incorporates an industry-standard 7/8"-14 TPI thread for universal fitment across single-stage and turret presses.
Purely Mechanical Operation: Requires no electrical power, motors, or specialised power cords to operate.

Product Specifications

Manufacturer Part Number (MPN): 83215
Die Type: Form and Trim Die (Series B)
Calibre: .35 Whelen / .35-06
Compatible Bullet Diameter: .358 in (9.09 mm)
Thread Interface: 7/8"-14 TPI
Material: Case-hardened alloy steel
Power Requirements: None (manual reloading tool)

Who is the Redding 35 Whelen Form & Trim Die for?

Handloaders forming .35 Whelen cases from .30-06 brass — provides an intermediate shaping and rough-trimming step through a dedicated .35 Whelen chamber profile that accommodates standard .358 in (9.09 mm) bullet conversions on any 7/8"-14 TPI reloading press.
Reloaders performing low-to-moderate volume case preparation — enables precise manual file-trimming directly on a standard 7/8"-14 TPI press interface using a hardened steel cutting guide.

Less suitable for: High-volume brass processing where manual file trimming causes a workflow bottleneck (a powered, motor-driven case trimmer is better suited), or non-standard chambers such as the .35 Whelen Ackley Improved, .358 Winchester, and .350 Remington Magnum (dedicated calibre-specific form dies are required).

SKU	RD41929LP
Model #	83215
Brand	Redding
Shipping Weight	1.0000kg

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Redding 83215 35 Whelen Form And Trim Die 7/8-14 Tpi Steel

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