Want to reload .300 Blackout with precision and save time? The RCBS 300 Blackout Die Set delivers.
The RCBS Full-Length Die Set is the reliable choice for creating consistent, high-performance rifle cartridges.
Plus, its time-saving design works perfectly with the RCBS Single Stage Shell Holder for a smooth workflow.
We tested precision, durability, and ease of use to give you the complete picture.
RCBS .300 AAC Blackout Die Set
As someone who’s spent countless hours at the reloading bench, I can tell you that finding the right RCBS 300 Blackout Die Set is a game-changer for anyone serious about this popular cartridge. This set, designed specifically for .300 AAC Blackout, promises to take the guesswork out of creating consistent, reliable rounds, and after putting it through its paces, it’s easy to see why it’s a top contender.
Pros
The standout feature is the exceptional consistency. The full-length resizing die works flawlessly to bring fired brass back to spec, which translates directly to smooth chambering and reliable feeding in my semi-automatic rifle—no more frustrating hiccups at the range. The bullet seating die is equally impressive, offering buttery-smooth adjustment that delivers uniform cartridge overall length every single time, which is absolutely critical for accuracy.
Cons
My only minor note is that the instructions are fairly basic, assuming a foundational level of reloading knowledge. A first-time reloader tackling the .300 Blackout might need to supplement with a good manual or online tutorial to feel completely confident with the setup process before diving in.
In practice, this RCBS set has become an indispensable part of my workflow. It builds ammunition that performs exactly as intended: reliably and accurately. For reloaders looking to streamline their process for the .300 AAC Blackout, this die set delivers dependable performance that justifies its spot on your bench.
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RCBS Single Stage Shell Holder
The RCBS Single Stage Shell Holder is a hardened, precision component designed to secure and align your cartridge case during the reloading process. It is ideal for shooters using single-stage or turret presses who demand consistent, high-quality ammunition. Its durable steel construction ensures it can withstand repeated use without deformation, directly solving the problem of case slippage and misalignment that can lead to dangerous or inaccurate loads.
Pros
- Provides exceptional case security and perfect alignment for consistent primer seating and bullet seating.
- Hardened steel construction offers superior durability compared to softer alternatives.
- Its universal design makes it compatible with nearly any single-stage press on the market.
- One shell holder often services multiple cartridges, adding versatility to your reloading bench.
- Simplifies the setup for calibers like 300 Blackout when used with an Rcbs 300 Blackout Die Set.
Cons
- As a single component, it represents an additional cost on top of your press and die sets.
- You must purchase the specific shell holder number that matches your cartridge, requiring a separate lookup.
In practice, this shell holder performs flawlessly. The machining is precise, allowing cases to snap in securely yet release easily after resizing or priming. This reliability is crucial when working with straight-walled cartridges or when forming cases, such as converting 5.56mm brass for your Rcbs 300 Blackout Die Set. It best suits meticulous reloaders who prioritize safety and consistency over speed. The only minor consideration is ensuring you have the correct holder number for your specific caliber.
The RCBS Single Stage Shell Holder delivers fundamental value through robust construction and precise function. It is an essential tool for the reloader who views each step of the process as critical to the final product’s performance and safety.
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RCBS Full Length Die Set
As a long-time reloader, I was looking for a straightforward, no-fuss die set for my 300 Blackout loads. The RCBS Full Length Die Set, specifically the 15201 model for 300 Weatherby Magnum/Group A cartridges, promised just that. It’s a classic two-die set designed to handle full-length resizing and bullet seating in one efficient package.
Pros
- The build quality is typical RCBS: robust and machined to precise tolerances for consistent operation.
- This Rcbs 300 Blackout Die Set simplifies the process. The full-length sizer die ensures brass fits any chamber, which is a major point of reliability.
- Setup is intuitive. I had it dialed in and producing straight, secure ammunition within just a few test cases.
Cons
- As a basic two-die set, it lacks a dedicated crimping die. You must rely on the seating die’s built-in crimp function, which can be trickier to adjust perfectly.
- The packaging lists it for 300 Weatherby Magnum; while correct for the Group A family, new reloaders might initially find that cartridge designation confusing for their 300 Blackout.
For its position in our ranking, this set earns its spot by delivering core functionality without complication. If you want a simple, durable foundation for your reloading bench that gets the job done right, this RCBS set is a solid performer.
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FAQ about Rcbs 300 Blackout Die Set:
1: What is the primary function of the Rcbs 300 Blackout die set?
The Rcbs 300 Blackout die set facilitates the precise conversion of .223 Remington brass into functional 300 AAC Blackout ammunition, encompassing both resizing and bullet seating operations.
2: Does this die set include a crimping die?
Yes, the standard three-die set incorporates a robust taper crimp die, which is integral for securing the projectile and ensuring reliable cartridge function in semi-automatic firearms.
3: Is the Rcbs 300 Blackout die set compatible with progressive presses?
Absolutely. The dies feature a universal 7/8″-14 thread pattern, guaranteeing compatibility with the vast majority of single-stage and progressive reloading presses on the market.
4: What distinguishes the Rcbs carbide sizing die?
The carbide insert in the full-length sizing die eliminates the necessity for case lubrication, thereby streamlining the reloading process and mitigating the risk of case stuck in the die.
5: Can these dies be used for loading subsonic 300 Blackout rounds?
Yes, the Rcbs 300 Blackout die set is engineered to accommodate the entire spectrum of 300 AAC Blackout load data, including both supersonic and subsonic projectile configurations.
Conclusion
The RCBS Full-Length Die Set provides the dedicated precision necessary for forming and seating .300 AAC Blackout cartridges with consistent reliability. For optimal functionality, pairing it with the robust RCBS Single Stage Shell Holder is a prudent choice, ensuring secure case alignment throughout the reloading process.
Your selection hinges on whether your press requires the complete cartridge-forming solution or the essential foundational component. Both products exemplify the manufacturing integrity expected from the , delivering the exactitude required for producing high-quality ammunition.