The Redding Competition Bushing Neck 3-Die Set for .300 Winchester Magnum is built to support and align a cartridge case throughout the neck-sizing process for precision handloads. The cartridge is supported in a tightly chambered sliding sleeve while the resizing bushing self-centers on the case neck, maintaining concentricity. The decapping rod is kept in precise alignment by the die’s internal parts acting as linear support. Micrometer adjustment of the bushing position provides fine control over the amount of neck length to be sized. This set is intended for competition shooters who prepare cases meticulously and prefer bushing-style neck sizing; bushings are supplied separately.
Key Specifications
- The cartridge is .300 Winchester Magnum.
- Includes Competition Bushing Neck Sizing Die, Body Die, Competition Seating Die.
- All dies are supplied without bushings.
- Features a micrometer adjustment for precise control of bushing position.
- Case support is provided by a tightly chambered sliding sleeve that keeps the cartridge aligned during sizing.
- The decapping rod is maintained in precise alignment by the die’s internal parts acting as linear support.
- Designed for competition shooters who prepare cartridge cases carefully.
- This is a 3-die set optimized for bushing-neck operations.
- The product lists a weight value of 2.0 (unit not specified in source data).
- Shipping weight is listed as 2.0 (unit not specified in source data).
For reloaders focused on repeatable neck tension and concentric seating, this Redding set provides the mechanical support and fine adjustment needed to tune neck sizing without relying on a sizing button. It suits precision and competition handloading workflows where consistent case support and micrometer control translate to more uniform cartridges and predictable seating results.
