Is the Redding 6.5 Grendel Type S Neck Die suitable for brass fired in semi-automatic rifles like AR-15s?

No, neck-sizing only is not recommended for semi-automatic or high-volume actions. Cartridges fired in AR-15 platforms require full-length resizing using the Redding Type S Full Length Die to ensure reliable feeding, smooth cycling, and complete chambering.

Does this die come with sizing bushings included?

No, the Redding 71478 neck die utilizes interchangeable sizing bushings which are sold separately. You will need to select the correct bushing diameter, such as the Redding heat-treated steel bushings available in our range, to achieve your desired neck tension.

How often will I need to perform shoulder bumping when using this neck-sizing die?

After approximately 3 to 5 firings in a single bolt-action chamber, brass sized exclusively with this neck die typically begins to experience stiff bolt-closure. At that stage, you will need to relieve the shoulder using a dedicated body die or full-length sizing die.

What press threading and shellholder are required to set up this die in Australia?

This die features a standard industry 7/8"-14 thread that fits all major reloading presses available in Australia, including Redding, RCBS, Lyman, Hornady, and Lee. For proper case retention, it pairs with a standard Redding Shellholder #12 or Competition Shellholder #12, which are sold separately.

6.5 Grendel Neck Die - Redding 71478

The Redding 6.5 Grendel Type S Bushing Neck Sizing Die (MPN: 71478) is a dedicated precision reloading tool engineered to resize only the external cartridge neck of 6.5 Grendel brass. Built on industry-standard 7/8"-14 reloading press threads, this die preserves the fire-formed dimensions of the case body and shoulder, extending brass longevity and improving chamber concentricity for projectiles measuring .264" in diameter. By utilising an interchangeable bushing system adjustable in .001" increments, handloaders can precisely control neck tension and bullet pull without overworking the case brass.

Key Features

Interchangeable Bushing System: Accepts standard Redding sizing bushings (available in .001" increments, sold separately) to set precise neck tension without overworking the case neck.
Preserves Fire-Formed Dimensions: Sizes solely the neck area, leaving the fire-formed body and shoulder intact for improved alignment in bolt-action chambers.
Adjustable Decapping Assembly: Permits partial neck resizing (such as sizing 1/2 to 3/4 of the total neck length) to create a centering band that enhances case-to-bore alignment.
Configurable Expander Assembly: Ships with a standard size button, but allows the expander to be removed and replaced with an included decapping pin retainer to minimise runout on uniform or neck-turned brass.
Universal Press Compatibility: Features standard 7/8"-14 threading to fit all major reloading presses and pairs with standard #12 (Part #11012) or Competition #12 (Part #11612) shellholders.

Specifications

Product: Redding 6.5 Grendel Type S Bushing Neck Sizing Die
Manufacturer Part Number (MPN): 71478
Calibre: 6.5 Grendel
Compatible Bullet Diameter: .264"
Thread Size: Standard 7/8"-14
Die Type: Bushing neck sizing die
Shellholder Compatibility: Redding #12 (sold separately)
Typical Weight: Approximately 200–300 g

Who is the Redding 6.5 Grendel Type S - Neck Die for?

Bolt-action benchrest and target shooters — precision handloading with this 6.5 Grendel neck sizing die ensures minimal bullet runout by setting exact neck tension via .001" increment bushings on a standard 7/8"-14 thread press.
Precision handloaders shooting 6.5 Grendel in single-chamber bolt rifles — dedicated neck sizing preserves fire-formed body dimensions for exact case-to-chamber fit when repeatedly reloading 6.5 Grendel brass for the same firearm.

Less suitable for: semi-automatic, pump-action, or lever-action platforms where neck-only sizing causes chambering failures, or for cases that have exceeded 3 to 5 firings and require shoulder setback; these conditions require a full-length sizing die or dedicated body die to ensure reliable feeding and smooth bolt closure.

SKU	RD41738LP
Model #	71478
Brand	Redding
Shipping Weight	1.0000kg

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Redding 71478 6.5 Grendel Neck Sizing Die Bushing System

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