What reloading press thread size does the Redding 83191 require?

The Redding 83191 case trim die features an industry standard 7/8"-14 thread interface, making it fully compatible with virtually all standard single-stage and turret reloading presses available on the Australian market.

Do I need any special accessories to use this trim die on my press?

Yes, because .45 Colt and .454 Casull are handgun cartridges with shorter overall case lengths, Redding specifies that you must use an extended shellholder to ensure the case reaches the correct height at the top of the press stroke for proper filing.

How does the file-trimming method work with this die without resizing the brass?

The die is precision-machined to actual chamber dimensions from heat-treated alloy steel. It holds the straight-wall brass rigidly on your press, allowing you to run a flat metal file directly across the hardened top surface of the die to cut protruding brass flush for a uniform overall case length.

Are there any licensing or electrical compliance requirements to purchase this tool in Australia?

No firearms license is required to purchase reloading dies or case preparation tooling in Australia as they are unrestricted mechanical accessories. Furthermore, because this is a manually operated hand-tool containing no electrical components, 240V power and SAA or RCM certifications do not apply.

Is this trim die suitable for high-volume commercial reloading production?

The Redding 83191 is designed for manual single-stage operation with a typical throughput of approximately 60 to 120 cases per hour depending on filing speed. For high-volume production runs processing hundreds or thousands of cases, a powered rotary lathe or electric case prep station would be much more efficient.

Case Trim Die - Redding 83191 45 Colt

The Redding 83191 Case Trim Die is a precision reloading tool engineered for manual file-trimming of .45 Colt and .454 Casull straight-wall cartridge brass. Machined from heat-treated, through-hardened alloy steel, the die withstands direct contact with flat hand metal files without damaging the tool surface. Cut to standard chamber dimensions, it rigidly secures brass in a standard reloading press to establish a flat, uniform case mouth for consistent roll and profile crimping without applying unnecessary full-length resizing or cold working.

Key Features

Hardened Steel Construction: Manufactured from through-hardened alloy steel to prevent wear when filing protruding brass flush with the top surface.
Chamber-Dimension Profiling: Internal dimensions match standard cartridge chamber profiles to hold cases securely without excessive resizing.
Standard Thread Mounting: Built with an industry-standard 7/8"-14 thread interface to integrate directly into standard single-stage reloading presses.
Multi-Calibre Compatibility: Accommodates both standard-pressure .45 Colt (.45 Long Colt) and high-pressure .454 Casull brass with .452" bullet profiles.
Dual-Purpose Application: Functions as a dedicated length-trimming die and an intermediate stabilizing step when reforming heavy straight-wall handgun brass.

Specifications

Calibre Compatibility: .45 Colt (.45 Long Colt) and .454 Casull (.452" diameter bullet profile)
Thread Standard: 7/8"-14 TPI
Material: Heat-treated, through-hardened alloy steel
Operation Type: Manual single-stage press file-trimming
Shipping Weight: Approximately 0.23 kg to 0.30 kg (including storage box)
Shellholder Note: Handgun trim applications may require an extended shellholder to achieve full file-trim stroke height

Who is the Redding Case Trim Die for .45 Colt and .454 Casull for?

Reloaders producing .45 Colt ammunition — utilizes a standard 7/8"-14 thread interface to secure straight-wall cases rigid on a single-stage press, enabling precise manual file-trimming to ensure uniform roll-crimping across standard .452" diameter bullet profiles.
Reloaders processing high-pressure .454 Casull brass — provides chamber-dimension support for .454 Casull straight-wall cases without cold-working the metal, allowing reloaders to file brass flush at processing rates of roughly 60 to 120 cases per hour.

Less suitable for: High-volume production runs exceeding 120 cases per hour or reloaders prepping necked cartridges, where a powered rotary lathe trimmer or motorized case prep centre is better suited.

SKU	RD102438LP
Model #	83191
Brand	Redding
Shipping Weight	0.2000kg

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Redding 83191 Case Trim Die 45 Colt 454 Casull Reloading Tool

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