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Availability: In Stock
The RCBS MatchMaster Competition Full-Length Bushing Die Set for .300 RUM brings competition-grade precision to your handloading bench. Built for shooters who demand consistency round after round, this three-die set combines RCBS's engineering expertise with features designed to tighten your groups and simplify your workflow. Whether you're preparing match ammunition or crafting premium hunting loads, the MatchMaster system takes the guesswork—and the frustration—out of precision reloading.
The full-length sizing die is the foundation here: precision-machined neck bushings give you repeatable, controllable neck tension on every case. This isn't one-size-fits-all sizing; you can dial in exactly the amount of neck pressure your ammunition needs. The titanium nitride-coated expander smooths case extraction and prevents the brass buildup that can stretch your case necks prematurely, protecting brass that you've already invested time in trimming and preparing.
The seating die is where the MatchMaster really earns its name. The bullet loading window with built-in retaining system lets you seat bullets straight and true without fumbling—no more pinched fingers or bullets that wander off-axis while you're raising the ram. The seating stem itself is micrometer-adjustable, free-floating, and self-centering, meaning you get precision bullet seating without the trial-and-error of traditional dies. The result is repeatable, consistent seating depth across your entire lot.
This is a three-die set engineered for handloaders who understand that small improvements in case prep and bullet seating compound into measurable accuracy gains. If you're serious about .300 RUM ammunition, the MatchMaster Competition set makes the time you invest in handloading count.
| Product Name | RCBS MatchMaster Competition Full-Length Bushing Die Set |
| Caliber | .300 RUM |
| Type | Three-Die Set (Full-Length Sizing Die, Expander, Seating Die) |
| Expander Coating | Titanium Nitride |
| Seating Stem | Micrometer-Adjustable, Free-Floating, Self-Centering |
This is a three-die set containing a full-length sizing die with precision-machined neck bushings, a titanium nitride-coated expander, and a MatchMaster Competition seating die with micrometer adjustment and the bullet loading window.
The bullet loading window lets you place a bullet securely without it shifting or tilting, then you simply raise the case into the die to seat it. This design prevents smashed fingers and misaligned bullets, making the seating process faster and more consistent.
The titanium nitride coating reduces friction during case extraction and prevents brass buildup on the expander itself. This means less wear on your case necks, helping brass survive more reload cycles before it becomes too thin to safely use.
Yes—the MatchMaster line is specifically engineered for precision handloaders and competition shooters who prioritize consistency and tight tolerances in their ammunition.
SKU: 167523056 • Width: 4.45in • Height: 1.75in • Depth: 5.95in • Weight: 1.25oz
Availability: In Stock
The RCBS MatchMaster Competition Full-Length Bushing Die Set for .300 RUM brings competition-grade precision to your handloading bench. Built for shooters who demand consistency round after round, this three-die set combines RCBS's engineering expertise with features designed to tighten your groups and simplify your workflow. Whether you're preparing match ammunition or crafting premium hunting loads, the MatchMaster system takes the guesswork—and the frustration—out of precision reloading.
The full-length sizing die is the foundation here: precision-machined neck bushings give you repeatable, controllable neck tension on every case. This isn't one-size-fits-all sizing; you can dial in exactly the amount of neck pressure your ammunition needs. The titanium nitride-coated expander smooths case extraction and prevents the brass buildup that can stretch your case necks prematurely, protecting brass that you've already invested time in trimming and preparing.
The seating die is where the MatchMaster really earns its name. The bullet loading window with built-in retaining system lets you seat bullets straight and true without fumbling—no more pinched fingers or bullets that wander off-axis while you're raising the ram. The seating stem itself is micrometer-adjustable, free-floating, and self-centering, meaning you get precision bullet seating without the trial-and-error of traditional dies. The result is repeatable, consistent seating depth across your entire lot.
This is a three-die set engineered for handloaders who understand that small improvements in case prep and bullet seating compound into measurable accuracy gains. If you're serious about .300 RUM ammunition, the MatchMaster Competition set makes the time you invest in handloading count.
| Product Name | RCBS MatchMaster Competition Full-Length Bushing Die Set |
| Caliber | .300 RUM |
| Type | Three-Die Set (Full-Length Sizing Die, Expander, Seating Die) |
| Expander Coating | Titanium Nitride |
| Seating Stem | Micrometer-Adjustable, Free-Floating, Self-Centering |
This is a three-die set containing a full-length sizing die with precision-machined neck bushings, a titanium nitride-coated expander, and a MatchMaster Competition seating die with micrometer adjustment and the bullet loading window.
The bullet loading window lets you place a bullet securely without it shifting or tilting, then you simply raise the case into the die to seat it. This design prevents smashed fingers and misaligned bullets, making the seating process faster and more consistent.
The titanium nitride coating reduces friction during case extraction and prevents brass buildup on the expander itself. This means less wear on your case necks, helping brass survive more reload cycles before it becomes too thin to safely use.
Yes—the MatchMaster line is specifically engineered for precision handloaders and competition shooters who prioritize consistency and tight tolerances in their ammunition.
SKU: 167523056 • Width: 4.45in • Height: 1.75in • Depth: 5.95in • Weight: 1.25oz