RCBS Matchmaster Competition Full-Length Bushing Die Set .300 WSM

RCBS Matchmaster Competition Full-Length Bushing Die Set .300 WSM

The Matchmaster series represents RCBS's commitment to precision reloading for serious competitors and dedicated handloaders. This full-length bushing die set is engineered for the .300 Winchester Short Magnum, a cartridge that demands exacting standards for optimal accuracy.

Key Features

• Bushing-style neck sizing for superior concentricity and consistency
• Full-length sizing maintains proper case dimensions for reliable feeding and chambering
• Competition-grade tolerances support tight ammunition specifications
• Complete die set includes all necessary components for efficient reloading

Proper Bushing Selection

Selecting the correct neck bushing size is critical to reloading success. To determine the proper bushing:

1. Measure the outside neck diameter of a loaded cartridge
2. Subtract .002" to .003" to allow for normal brass spring back
3. This measurement equals your required bushing size

This approach ensures your resized cases maintain proper neck tension without excessive pressure on the bullet, promoting consistent velocities and superior accuracy.

Why Choose Bushing Dies

Bushing-style dies offer distinct advantages over conventional sizing dies. They isolate neck sizing from body sizing, allowing independent control of each dimension. This precision is particularly valuable in magnum cartridges like the .300 WSM, where consistency directly translates to downrange performance.