Rcbs Matchmaster Bushing Die Set .338 Lapua Neck Size
$177.34
The RCBS Matchmaster Bushing Die Set for .338 Lapua is built for long-range and precision rifle reloaders who demand consistency. This neck-size die set uses interchangeable neck bushings—a proven technology among benchrest and competitive long-range shooters—to give you precise control over bullet tension while minimizing brass wear. Neck sizing extends case life compared to full-length sizing, making it a smart choice if you're loading match-grade ammunition or hunting rounds where every shot matters.
The die set includes a neck sizing die and a bullet seating die, both machined from case-hardened steel with precision-drilled and hand-polished internal surfaces. The sizing die comes equipped with a titanium carbo-nitride expander that reduces brass buildup and ensures smooth extraction. Where Matchmaster stands out is in the seating die: the oversized micrometer adjustment knob features clear lettering and hash marks for precise, repeatable adjustments down to one-thousandth of an inch. The exclusive loading window with bullet retention system lets you drop the bullet and run the press—no balancing, no fingers near the case mouth.
The free-floating, self-centering bullet seating stem guides your bullet into the case for outstanding concentricity, critical for accuracy at distance. Both dies use the standard 7/8"-14 thread, compatible with most single-stage and turret presses. Note that neck bushings are sold separately; you'll choose the right size for your .338 Lapua brass and desired bullet tension.
Key Features
- Neck-size die set for minimal brass manipulation and extended case life
- Interchangeable neck bushings (sold separately) for precise bullet tension control
- Titanium carbo-nitride expander to reduce brass buildup
- Exclusive loading window and bullet retention system for safe, concentric seating
- Oversized micrometer adjustment knob with clear hash marks for repeatability
- Free-floating, self-centering bullet seating stem
- Case-hardened steel construction with hand-polished internals
- Standard 7/8"-14 thread for universal press compatibility
Specifications
| Caliber | .338 Lapua |
| Die Type | Neck Sizing and Bullet Seating Set |
| Included Components | Neck Sizing Die, Bullet Seating Die |
| Expander | Titanium Carbo-Nitride |
| Thread Size | 7/8"-14 |
| Bushing Type | Interchangeable Neck Bushings (sold separately) |
Frequently Asked Questions
What neck bushings do I need for .338 Lapua reloading?
Neck bushings are sold separately. You'll select the appropriate bushing diameter based on your .338 Lapua brass and desired bullet tension. RCBS offers a range of bushing sizes to fine-tune fit.
Will this die set work with my single-stage press?
Yes. The Matchmaster dies use the standard 7/8"-14 thread, which fits most modern single-stage and turret presses.
What's included in this die set?
The set includes a neck sizing die with titanium carbo-nitride expander and a bullet seating die with the loading window and bullet retention system. Neck bushings are not included and must be purchased separately.
Why would I use neck sizing instead of full-length sizing?
Neck sizing reduces the amount of brass manipulation, which extends case life—especially valuable for precision and long-range reloading. It's ideal if you're loading for a single rifle and want to minimize wear on your brass.
