Forster Full Length Bushing Sizing Die 338 Lapua Mag

• Bushing-controlled neck sizing: The bushing design lets the reloader tune neck tension more precisely than a fixed-neck die, which helps produce more consistent bullet release and can reduce unnecessary working of the brass.
• Full-length sizing for reliable chambering: By sizing the case body while also setting the shoulder back, this die supports dependable feeding and chamber fit in rifles chambered for .338 Lapua Magnum, especially when brass has been fired multiple times.
• Decapping and sizing in one step: The die combines decapping with full-length sizing, streamlining case preparation and reducing the number of operations needed at the press.
• Steel construction: A steel die body is suited to repeated use on large rifle cases, giving the tool the rigidity and wear resistance needed for consistent sizing over long loading sessions.
• Standard 7/8"-14 thread: Compatibility with standard reloading presses makes it easy to integrate this die into an existing bench setup without special adapters or a dedicated press.

About the Full Length Bushing Sizing Die Series

Forster Full Length Bushing Sizing Dies are built for reloaders who want the case-fit advantages of a full-length sizer while keeping closer control over neck tension. In Forster’s reloading lineup, this series sits between conventional full-length sizing dies and more specialized match-loading tools, making it a practical choice for shooters who want repeatable ammunition without giving up flexibility. The concept is straightforward: size the body and bump the shoulder for reliable chambering, while the interchangeable bushing system lets the neck be sized to the degree the load requires.

That approach makes the series especially relevant for precision rifle loading, where brass life, concentricity, and consistent bullet release all matter. Rather than forcing every case neck through one fixed dimension, the bushing system allows the die to be matched more closely to the brass and bullet combination in use. Across the series, the design philosophy emphasizes practical bench use: robust steel construction, standard press fitment, and compatibility with Forster’s broader precision reloading ecosystem. For reloaders working with bottleneck rifle cartridges, these dies are intended to balance accuracy-focused case preparation with the dependable chamber fit needed for field or match ammunition.

About the Forster Full Length Bushing Sizing Die 338 Lapua Mag

The Forster Full Length Bushing Sizing Die 338 Lapua Mag is tailored to one of the largest and most demanding mainstream precision rifle cartridges. In this application, full-length sizing is particularly important because .338 Lapua Magnum ammunition is often used in rifles where smooth chambering and uniform case geometry matter as much as raw accuracy. This die handles decapping and full-length sizing in one operation, helping return fired brass to a controlled shape for reliable reuse.

What sets this model apart is its bushing-based neck sizing system. Instead of relying on a one-size-fits-all neck dimension, the die allows the reloader to choose the neck-sizing bushing that best suits the brass and desired neck tension. In practice, that means more control over how firmly the bullet is held, which can help with consistency from round to round. It also reduces excessive working of the neck compared with more aggressive fixed-dimension sizing, which is useful when loading expensive magnum brass repeatedly.

The die is made from steel and uses a standard 7/8"-14 thread, so it fits common reloading presses and suits established bench setups. Its bottleneck rifle case design and standard adjustment layout keep operation familiar, while the single-die format makes it a focused tool for reloaders who already have a seating solution and want dedicated control over the sizing stage of the loading process.

About Forster

Forster Products dates its history to 1935 and is based in Lanark, Illinois. The company states that its products are made in the United States, and its long-standing focus has been precision reloading and gunsmithing tools rather than general shooting accessories. That specialization is reflected in a catalog built around dies, case trimmers, headspace gauges, and sight-mounting fixtures.

Within reloading, Forster is especially well known for tools aimed at careful ammunition assembly, including the Co-Ax Press and its Bench Rest die lines. Its Bench Rest Seater Dies are designed around a close-fitting chamber that helps align the case and bullet during seating, showing the company’s emphasis on concentricity and repeatable results. This background makes Forster a natural fit for reloaders building precision rifle ammunition and looking for tools with a strong bench-rest influence.

Main Features

• Manufacturer: Forster
• Made in: USA
• Die operation: Decapping, Full length sizing
• Pack size: Single
• Die type: Bushing
• Bushing: Yes
• Case body design: Bottle neck
• Case type: Rifle
• Sizing die material: Steel
• Material: Steel
• Adjustment: Standard
• Press compatibility: Standard 7/8"-14 thread
• Bullet diameter: 8.58 mm / 338.00 inch
• Compatible calibers: .338 Lapua Magnum, .338 LM, 8.6x70mm

Warranty

2 years. This product is covered by a 2-year warranty.