Description
If you handload 224 Valkyrie and chase tight groups at distance, the die that seats your bullet matters just as much as the brass and powder. The RCBS MatchMaster seater sits at the top of the RCBS die family, pulling together the best features from their Gold Medal and Competition lines into one standalone seating die. Each one is machined from case-hardened steel, drilled and reamed to exacting standards inside, then hand polished and finished with a deep blued look you'd expect on a fine rifle.
What the MatchMaster 224 Valkyrie Seater Gets Right
The real story here is concentricity. The die uses a free-floating, self-centering seating stem and an internal sleeve that catches the bullet and holds it in alignment with the case before the two ever meet. That means the bullet gets guided straight into the neck instead of being pushed in at a slight angle, which is exactly what you want when you're trying to shrink runout and keep every round consistent.
Dialing In Your Seating Depth
The large oversized micrometer knob is one of those features you appreciate the first time you use it. The letters and hash marks are big and easy to read, and when you dial one-thousandth of an inch, that's what you get on the bullet. Fine-tuning seating depth to match your rifle's chamber and favorite bullet becomes a quick, repeatable process rather than a guessing game.
Loading Made Simpler
RCBS built in their bullet seating window with a retention system, so you drop the bullet into the opening and run the press to seat it. No balancing a bullet on the case mouth or getting your fingers near the shell holder. It runs on a standard 7/8"-14 thread, so it threads right into any common single-stage or turret press, and it's backed by the RCBS Limited Lifetime Warranty. Made in the USA.
Key Specifications
- Manufacturer: RCBS
- Model: MatchMaster
- Manufacturer Part Number: 11240
- UPC: 604544654370
- Caliber: 224 Valkyrie
- Projectile Diameter: .224
- Die Type: Bullet Seater Die
- Thread Size: 7/8"-14
- Material: Case-Hardened Steel
- Finish: Deep Blued
- Adjustment: Oversized Micrometer, .001" increments
- Seating Stem: Free-Floating, Self-Centering
- Shellholder Included: No
- Country of Origin: USA
- Warranty: Limited Lifetime
- Shipping Weight: 0.95 lbs
What’s Included
- RCBS MatchMaster 224 Valkyrie bullet seater die (1)
Frequently Asked Questions
Does the MatchMaster 224 Valkyrie seater die come with a sizing die or shellholder?
No, this is a standalone bullet seating die only. It does not include a sizing die or a shellholder, so you'll want to pair it with your preferred sizing die and the correct shellholder for 224 Valkyrie. RCBS also offers MatchMaster full-length and neck-size sets if you'd rather buy a complete package.
Will this die fit my reloading press?
Yes. It uses the standard 7/8"-14 thread, so it threads into virtually any common single-stage or turret press on the market. Just note RCBS lists this die as not compatible with the RC Supreme press.
What makes the MatchMaster seater better than a standard RCBS seating die?
The MatchMaster is the top tier of the RCBS die lineup, combining features from the Gold Medal and Competition series. It adds a free-floating, self-centering seating stem and an internal sleeve that aligns the bullet with the case before seating, which produces excellent concentricity. The oversized micrometer also lets you adjust seating depth in true one-thousandth increments.
How precise is the micrometer adjustment on this seater die?
The oversized micrometer knob adjusts in one-thousandth of an inch increments, and when you dial that in, that's what you get at the bullet. The large letters and hash marks make it easy to read and return to a known setting. That repeatability is a big help when you're fine-tuning seating depth for a specific bullet and chamber.





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