RCBS 22401 Full-Length 2-Die Set for 300 Blackout - Group D Reloading Dies

SKU:
121687148
|
UPC:
076683224019
|
MPN:
22401
$92.03
Current Stock:
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Type:
Full Length Die Set
Caliber-Gauge:
300 AAC Blackout/Whisper
Die Type:
Sizer/Seater
In Set:
2

The RCBS 22401 full-length 2-die set for 300 Blackout is the foundational tool kit for reloaders who want consistent, reliable ammunition. Whether you're working up loads for subsonic hunting, suppressed shooting, or precision rifle work, this Group D die set handles the essential steps of case preparation and bullet seating. Full-length sizing is the go-to approach for shooters who move ammunition between rifles or want maximum case life and reliability across multiple firearms.

This die set sizes your entire case—bumping the shoulder to spec and reducing body diameter so rounds chamber smoothly—while simultaneously decapping the spent primer in one efficient stroke. The expander ball sizes the neck to the right tension for bullet seating, ensuring consistent ignition and accuracy. The included seater die seats bullets to precise depth and features an adjustable crimp ring, so you can crimp or skip it based on your load design. That flexibility matters when you're fine-tuning for competition, hunting, or plinking.

RCBS dies are built to last. Many reloaders run the same full-length die set through multiple barrel life cycles without replacement. If you're new to reloading, this is the type of foundational kit that teaches you the discipline and technique you'll rely on for years. It's a smart, economical starting point before exploring specialty dies or alternative methods.

Key Features

  • Full-length sizing die resizes case body and bumps shoulder, with integral decapper for spent primers
  • Expander ball sizes the neck to correct tension for consistent bullet fit
  • Seater die with adjustable crimp ring—crimp or omit to suit your load specs
  • Works with full-length sized cases or neck-sized cases
  • Durable construction for extended use across multiple barrels and cartridges

Specifications

Product NameRCBS 22401 Full-Length 2-Die Set for 300 Blackout
Caliber300 Blackout
Die TypeFull-Length Sizing and Seating (2-Die Set)
Die GroupGroup D
IncludesFull-length sizing die with decapper, seater die with crimp ring

Frequently Asked Questions

Do I need to lube my cases before using the full-length sizing die?

Yes. Cases must be lubricated before full-length sizing to protect the case and die and ensure smooth operation.

Can I use this die set for both full-length and neck-sized cases?

Yes. The seater die will seat bullets correctly in both full-length sized cases and neck-sized cases, giving you flexibility in your reloading approach.

How do I adjust the crimp?

The seater die has a built-in crimp ring that you can engage or disengage by raising or lowering the die position in your press. This lets you crimp or skip crimping to match your load design.

What's the right shoulder bump for my 300 Blackout loads?

We recommend using a cartridge headspace gage tool to dial in the correct shoulder bump. This ensures your loads chamber reliably and gives you repeatable results.