Redding Competition Bushing Neck Die 338 Lapua Mag

The Redding Competition Bushing Neck Die for 338 Lapua Mag is built for precision reloaders who demand control over every dimension of their cartridge necks. If you're competing at distance or pushing the limits of accuracy with your 338 Lapua rifle, this die delivers the repeatability and consistency that separate competitive loads from run-of-the-mill ammunition. The bushing-style design lets you fine-tune neck sizing without relying on a sizing button, giving you the flexibility serious long-range shooters need to optimize fit and concentricity on their cases.

What sets this die apart is its engineering. The case stays fully supported and perfectly aligned throughout the entire sizing stroke—it's cradled in a chambered sliding sleeve that moves with the case as it travels upward. Meanwhile, the resizing bushing self-centers on the neck, ensuring consistent, concentric sizing every cycle. The decapping rod is held in precise alignment by the die's internal geometry, much like a firing pin in a bolt, so you get the same level of precision on every stroke. That consistency is what wins matches and tightens groups.

The micrometer adjustment on the bushing position gives you granular control over how much neck length gets sized—you dial in exactly what you need and lock it down. This is a die purpose-built for handloaders who've already prepped their brass meticulously and want a sizing solution that respects that work. Note that bushings and shellholders are sold separately, so plan accordingly when you order.

Key Features

• Full case support and alignment before and during the sizing stroke for consistent results
• Self-centering bushing design ensures concentric neck sizing on every reload
• Micrometer adjustment for precise control of neck length sizing
• Internal geometry maintains decapping rod alignment for reliable, repeatable operation
• Designed for competition and precision reloaders who prepare brass to high standards
• No sizing button—bushing-style operation gives you direct control over the sizing process

Specifications

Frequently Asked Questions

Is this die compatible with my 338 Lapua Mag reloading press?

This die is a standard competition bushing neck die for 338 Lapua Mag. It will work with any press that accepts standard reloading dies. Bushings and shellholders are sold separately, so verify you have the correct bushing size and shellholder for your setup.

Do I need a sizing button with this die?

No. This die is designed to work without a sizing button—the bushing-style design gives you direct control over neck sizing. If you prefer to use a sizing button, Redding offers carbide size button kits separately.

What makes this die different from a standard neck sizing die?

The Competition Bushing Neck Die fully supports and aligns the case throughout the sizing stroke, and the self-centering bushing ensures concentric sizing on every cycle. The micrometer adjustment lets you fine-tune the amount of neck length that gets sized. This level of control is built for competition shooters and precision reloaders who've prepared their brass carefully and want consistent, repeatable results.

What comes with this die and what do I need to buy separately?

You receive the die body. Bushings and shellholders are sold separately, so you'll need to purchase those to complete your setup. Redding also offers carbide size button kits separately if you decide you want a sizing button option.