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Availability: In Stock
The RCBS MatchMaster Competition Neck Bushing Set for .300 Win Mag gives serious precision handloaders a dedicated solution for neck-sized ammunition. If you're chasing tight groups at distance or running a competition load development program, this die set is engineered to control the variables that matter most: consistent neck tension and repeatable bullet seating without the guesswork.
The heart of the system is the neck sizing die, which uses precision-machined neck bushings to apply exactly the right amount of tension to your case neck—without altering the fired case body. This approach preserves case dimensions you've already worked hard to refine. The titanium nitride coated expander ball contributes to smoother case extraction and resists brass buildup, both factors that reduce unwanted neck stretch over multiple reloading cycles.
The matching seating die is where the MatchMaster design really shines for the handloader who values consistency and ergonomics. A bullet loading window with retaining system lets you position your bullet before raising the case into the die—no more fumbled fingers or tilted bullets mid-seating. The micrometer adjustable seating stem floats freely and self-centers, meaning you're not fighting alignment issues while chasing that perfect round. The result is reliable, accurate bullet seating every time without the friction (literal and mental) of older designs.
Built for .300 Win Mag, this set pairs precision engineering with thoughtful details that add up to better ammo and fewer reloading frustrations—exactly what the serious competitor or long-range hunter needs.
| Caliber | .300 Winchester Magnum |
| Brand | RCBS |
| Product Type | Neck Bushing Die Set (Neck Sizing + Seating) |
| Expander | Titanium Nitride Coated |
| Seating Stem | Micrometer Adjustable, Free-Floating, Self-Centering |
The set includes a neck sizing die with precision-machined neck bushings and a competition seating die with micrometer adjustment and bullet retaining window. Both are calibrated for .300 Win Mag.
Neck sizing preserves your fired case body dimensions, which is ideal if you're working up precision loads or reloading for a particular rifle. The MatchMaster's bushing system gives you fine control over neck tension without unnecessary case manipulation.
The window lets you position the bullet before the case enters the die, eliminating misalignment and the need to hold the bullet steady as you raise the case. The free-floating, self-centering stem does the rest, making the seating process more consistent and your fingers safer.
This set is built for precision handloaders, competition shooters, and long-range hunters who demand tight, repeatable ammunition. It's ideal if you've already invested time in case prep and load development and want dies that respect that work.
SKU: 167523054 • Width: 4.5in • Height: 2.15in • Depth: 6in • Weight: 0.25oz
Availability: In Stock
The RCBS MatchMaster Competition Neck Bushing Set for .300 Win Mag gives serious precision handloaders a dedicated solution for neck-sized ammunition. If you're chasing tight groups at distance or running a competition load development program, this die set is engineered to control the variables that matter most: consistent neck tension and repeatable bullet seating without the guesswork.
The heart of the system is the neck sizing die, which uses precision-machined neck bushings to apply exactly the right amount of tension to your case neck—without altering the fired case body. This approach preserves case dimensions you've already worked hard to refine. The titanium nitride coated expander ball contributes to smoother case extraction and resists brass buildup, both factors that reduce unwanted neck stretch over multiple reloading cycles.
The matching seating die is where the MatchMaster design really shines for the handloader who values consistency and ergonomics. A bullet loading window with retaining system lets you position your bullet before raising the case into the die—no more fumbled fingers or tilted bullets mid-seating. The micrometer adjustable seating stem floats freely and self-centers, meaning you're not fighting alignment issues while chasing that perfect round. The result is reliable, accurate bullet seating every time without the friction (literal and mental) of older designs.
Built for .300 Win Mag, this set pairs precision engineering with thoughtful details that add up to better ammo and fewer reloading frustrations—exactly what the serious competitor or long-range hunter needs.
| Caliber | .300 Winchester Magnum |
| Brand | RCBS |
| Product Type | Neck Bushing Die Set (Neck Sizing + Seating) |
| Expander | Titanium Nitride Coated |
| Seating Stem | Micrometer Adjustable, Free-Floating, Self-Centering |
The set includes a neck sizing die with precision-machined neck bushings and a competition seating die with micrometer adjustment and bullet retaining window. Both are calibrated for .300 Win Mag.
Neck sizing preserves your fired case body dimensions, which is ideal if you're working up precision loads or reloading for a particular rifle. The MatchMaster's bushing system gives you fine control over neck tension without unnecessary case manipulation.
The window lets you position the bullet before the case enters the die, eliminating misalignment and the need to hold the bullet steady as you raise the case. The free-floating, self-centering stem does the rest, making the seating process more consistent and your fingers safer.
This set is built for precision handloaders, competition shooters, and long-range hunters who demand tight, repeatable ammunition. It's ideal if you've already invested time in case prep and load development and want dies that respect that work.
SKU: 167523054 • Width: 4.5in • Height: 2.15in • Depth: 6in • Weight: 0.25oz