RCBS 16608 MatchMaster Full-Length Bushing Die Set for 338 Lapua Magnum
- Caliber-Gauge:
- 338 Lapua Magnum
- Die Type:
- Bushing
- In Set:
- 2
The RCBS 16608 MatchMaster Full-Length Bushing Die Set for 338 Lapua Magnum is built for precision handloaders who demand consistency in every round they chamber. This three-die set addresses the core challenges of competitive and long-range reloading: controlling neck tension, minimizing case stretch, and achieving repeatable bullet seating without the frustration of misalignment or damaged rounds.
The full-length sizing die is where precision begins. RCBS engineered precision-machined neck bushings that apply the exact amount of neck tension you need—a critical variable for shooters chasing sub-minute-of-angle groups. Paired with a titanium nitride-coated expander, the sizing die delivers smooth case extraction while reducing brass buildup, which translates to less work-hardening on your case necks and longer case life. That matters when you're investing in premium 338 Lapua brass.
The seating die is where the MatchMaster concept really shines. Instead of wrestling with traditional reloading dies, you simply place your bullet in the integrated bullet loading window, and the retaining system holds it steady while you raise the case to seat. No pinched fingers, no cocked bullets, no second-guessing. The seating stem itself is micrometer-adjustable, free-floating, and self-centering—meaning runout stays minimal and your seating depth stays consistent shot after shot. This is the kind of precision engineering that separates competition dies from standard fare.
If you're serious about 338 Lapua precision rifle work—whether for long-range hunting, PRS competitions, or bench rest—this die set removes variables from the reloading bench and puts them where they belong: in your hands.
Key Features
- Precision-machined neck bushings for controlled, consistent neck tension
- Titanium nitride-coated expander reduces brass buildup and case work-hardening
- Integrated bullet loading window with retaining system—faster, safer, more accurate seating
- Micrometer-adjustable seating stem for repeatable bullet seating depth
- Free-floating, self-centering seating stem minimizes bullet runout
- Full-length sizing die for complete case support
Specifications
| Product | RCBS MatchMaster Full-Length Bushing Die Set |
| Caliber | 338 Lapua Magnum |
| Die Set Contents | Full-length sizing die, seating die, and accessories |
| Sizing Expander | Titanium nitride coated |
| Seating Stem | Micrometer adjustable, free-floating, self-centering |
Frequently Asked Questions
What's included in this die set?
The RCBS 16608 includes a full-length sizing die with precision-machined neck bushing, a MatchMaster seating die with micrometer adjustment and bullet retaining window, and necessary accessories. Check your product box or RCBS documentation for a complete component list.
What caliber is this die set for?
This is a 338 Lapua Magnum set only. Do not use it for other calibers.
How does the bullet seating window work?
Instead of holding the bullet with tweezers or your fingers, you place the bullet in the integrated loading window where a retaining system holds it upright and aligned. You then raise the case up into the die to seat the bullet, eliminating misalignment and the risk of smashing your fingers.
Is this die set suitable for precision long-range hunting and competition reloading?
Yes. The MatchMaster line is specifically designed for precision handloaders seeking consistency in case sizing and bullet seating, making it well-suited to long-range and competitive applications where every variable matters.

