RCBS Ammomaster 2 Single Stage Press Review

Real Insights into the RCBS Ammomaster 2 Single Stage Press

As an equipment specialist with over a decade of experience across diverse demanding environments – from the grit of workshops and the precision of labs to the unpredictability of field conditions – I approach gear with a critical eye. My search for a robust single-stage press, capable of handling a wider spectrum of calibers than my current setup, led me to the RCBS Ammomaster 2 Single Stage Press. This particular unit caught my attention due to its stated ability to accommodate larger calibers, a capability that my existing press simply lacked.

The need for a more versatile press arose from a growing interest in reloading some larger-caliber rifle rounds, something my previous, more compact press was not designed for. I needed a piece of equipment that wouldn’t falter under the stresses of resizing significantly larger casings, without sacrificing the precision required for consistent ammunition. I’d looked at a few other heavy-duty presses, but many were significantly more expensive or lacked the specific upgrade path that RCBS advertised for this model. My initial impression upon receiving the press was one of solid, no-nonsense construction; it felt weighty and substantial in hand, immediately conveying a sense of dependable durability.

There was a definite sense of anticipation, almost relief, in finally acquiring a press that promised to meet these expanded reloading needs, moving beyond my previous limitations. It signaled the potential to delve into new reloading projects with confidence.

Real-World Testing: Putting RCBS Ammomaster 2 Single Stage Press to the Test

First Use Experience

My testing regimen began on my dedicated reloading bench in the workshop, a controlled environment where I could meticulously assess its performance. The press was bolted securely to the heavy oak bench, providing a stable foundation. I started with standard pistol cartridges, then moved to common rifle calibers, before finally mounting the necessary dies for the larger rounds I had in mind.

The RCBS Ammomaster 2 Single Stage Press handled each operation with a satisfyingly smooth and consistent feel. There was no noticeable flex or wobble, even when resizing tougher bottlenecked cases. The ram operated with a fluid motion, and the priming system, when engaged, was straightforward to use.

A minor surprise was the sheer robustness; it felt almost over-engineered for some of the smaller calibers, which is a testament to its design for larger tasks. It felt intuitive from the outset, requiring very little adjustment or fiddling to achieve optimal operation for the tasks at hand.

Extended Use & Reliability

Weeks turned into months, and this press became a workhorse on my bench. I’ve processed hundreds of rounds through it, from .223 Remington up to some .30-06 cases, and even experimented with .308 Winchester brass. The consistency has remained remarkably high throughout this period.

There are no visible signs of wear and tear to speak of; the paint finish is still pristine, and the internal mechanisms remain as smooth as they were on day one. Maintenance has been minimal, requiring only the occasional wipe-down and a light application of lubricant to the ram.

Compared to other single-stage presses I’ve used, this RCBS unit stands out for its sheer brute strength and the absence of any play in the system. It feels far more substantial than some of the lighter-duty models that I’ve had to replace due to wear or flex.

Breaking Down the Features of RCBS Ammomaster 2 Single Stage Press

Specifications

The RCBS Ammomaster 2 Single Stage Press is a testament to robust engineering, designed to handle a broad range of reloading tasks. Its fundamental architecture is built around a heavy-duty cast iron frame, providing exceptional rigidity. This frame is complemented by longer support columns and a larger toggle block, features borrowed directly from RCBS’s .50 BMG press, which significantly enhances its strength and stability.

It utilizes the industry-standard 7/8 inch-14 thread dies, a universal fit that ensures compatibility with a vast array of reloading dies from RCBS and other manufacturers. Similarly, it accepts standard shell holders, further broadening its versatility. The press boasts a generous opening, allowing it to accommodate a wide variety of cartridge lengths.

Crucially, this press is engineered for adaptability. While it handles common pistol and rifle calibers out of the box, its true potential is unlocked with the RCBS .50 BMG 1 1/2-inch Die Kit. This optional kit, which includes a Full Length Size Die, Roll Crimp Seat Die, Trim Die, a dedicated .50 BMG Shell Holder, and a RAM Priming Unit, allows users to reload everything from .25 ACP all the way up to the mighty .50 BMG.

The press itself is constructed from metal, specifically a heavy-duty cast iron, ensuring longevity and stability. Its utilitarian design is finished in a classic green color, indicative of RCBS’s long-standing presence in the reloading industry. Manufactured in the USA, it carries the weight of a heritage known for quality and reliability.

The inclusion of longer support columns and a larger toggle block directly from their .50 BMG press is a standout specification. This design choice provides superior leverage and greatly reduces frame deflection under heavy load, a common issue with less robust presses when resizing large cartridges. This means less effort required from the user and greater precision in the reloading process, particularly when working with tougher brass or larger case dimensions.

While it accepts standard 7/8 inch-14 dies, RCBS also offers a 1 1/2-inch die system for larger calibers. This is a critical distinction, as it allows for the use of larger diameter dies necessary for cartridges like the .50 BMG, which standard presses cannot accommodate. The ability to upgrade to this larger die system without replacing the entire press is a significant value proposition.

Performance & Functionality

The primary function of any reloading press is to provide a stable, precise platform for resizing cases, seating bullets, and performing other critical reloading operations. The RCBS Ammomaster 2 Single Stage Press excels at this core task. When resizing even larger magnum rifle cases, the press exhibits virtually no frame deflection, a stark contrast to many lighter-duty presses where you can visibly see the frame flex.

This lack of flex translates directly into more consistent resized case neck runout and primer pocket depth. The ram’s action is incredibly smooth, almost buttery, due to the precision machining and the quality of the cast iron. Seating bullets is equally impressive; the primer seating arm, when used, offers a tactile feedback that aids in seating primers to a consistent depth without overdriving them.

Its main strength lies in its unwavering stability and strength, which directly benefits reloading precision. The most significant weakness, if one can call it that, is that it’s a single-stage press. For high-volume handgun reloading, a progressive press offers speed that this unit cannot match. However, for accuracy-focused rifle reloading or specialized large-caliber work, its deliberate pace is actually an advantage, allowing for meticulous attention to each step.

It absolutely meets and exceeds expectations for its intended purpose, particularly for those reloading larger rifle cartridges. The ability to load everything from .25 ACP to .50 BMG with the correct die kits makes it incredibly versatile for its class.

Design & Ergonomics

The design of the RCBS Ammomaster 2 Single Stage Press is classic and utilitarian, prioritizing function over form, which is exactly what you want in a piece of reloading equipment. The heavy-duty cast iron construction gives it a substantial feel, reassuring you of its durability. The powder-coated green finish is tough and resistant to scratches from tooling or spent brass.

Ergonomically, the press is well-designed for comfort and control during long reloading sessions. The large handle provides ample leverage, and its length is well-proportioned to the press stroke, minimizing strain. The large opening between the ram and the die imparts ease of access for placing and removing shell holders and cases.

The bolt holes for mounting are generously sized, making it straightforward to secure to a workbench. While there are no fancy grips or adjustable handles, the simplicity of the design means there’s little to go wrong. This lack of complexity is, in itself, an ergonomic advantage, as it allows the reloader to focus entirely on the task at hand without fiddling with superfluous controls.

Durability & Maintenance

Given its construction, the RCBS Ammomaster 2 Single Stage Press is built to last for decades, likely outliving most reloaders who purchase it. The heavy-duty cast iron frame is inherently resistant to damage, and the precision-machined steel components of the ram and toggle system are designed for high cycle counts. I anticipate no significant failure points under normal, or even heavy, reloading use for its intended caliber range.

Maintenance is refreshingly simple. A light coating of oil on the ram and pivot points every few months is typically all that’s needed to keep it operating smoothly. Cleaning is as easy as wiping down the frame and ram with a dry cloth to remove any dust or powder residue.

There are no complex mechanisms or sensitive electronic components to worry about. The most likely point of wear over extreme mileage would be the primer arm’s spring or the primer punch itself, but these are standard, easily replaceable parts. Potential concerns are minimal; perhaps ensuring the bench it’s mounted on is sturdy enough to handle the torque applied during resizing larger cartridges.

Accessories and Customization Options

The RCBS Ammomaster 2 Single Stage Press comes as a complete press unit, ready for dies and shell holders. It doesn’t typically include dies or shell holders as standard, as these are caliber-specific and chosen by the user. However, RCBS offers a wide array of complementary accessories that enhance its functionality.

The most significant “accessory” is the RCBS .50 BMG 1 1/2-inch Die Kit. This kit is essential for anyone intending to reload .50 BMG, as it provides the necessary larger diameter dies and a specialized shell holder, along with a priming unit designed for this massive cartridge. This makes the press incredibly adaptable, transforming it from a standard rifle press into a capable large-caliber machine.

Beyond the .50 BMG kit, the press is designed to accept any standard 7/8 inch-14 thread dies and standard RCBS shell holders, offering broad compatibility with countless reloading components. Many reloaders also opt for aftermarket die bushings, allowing for rapid changes between different die sets without needing to screw them in and out each time. This is a highly recommended addition for those who frequently switch between calibers.

Pros and Cons of RCBS Ammomaster 2 Single Stage Press

Who Should Buy RCBS Ammomaster 2 Single Stage Press?

This press is an outstanding choice for the serious rifle reloader, especially those interested in larger magnum cartridges or wildcat rounds that demand a robust platform. It’s perfect for hobbyists who prioritize precision, durability, and the capability to handle magnum and large-bore rifle calibers. If you plan on reloading cartridges like .30-06, .300 Win Mag, .338 Lapua Magnum, or even .50 BMG, this press is tailor-made for your needs.

Conversely, if your primary focus is high-volume pistol ammunition for competitive shooting or plinking, a progressive press would offer significantly greater speed. Those with very limited bench space might also find it a bit substantial.

For those venturing into larger calibers, investing in a set of 1 1/2-inch dies and the corresponding RCBS .50 BMG 1 1/2-inch Die Kit is a must. A sturdy workbench that can handle the torque is also essential, along with a solid bench vise to ensure the press is mounted securely.

Conclusion on RCBS Ammomaster 2 Single Stage Press

The RCBS Ammomaster 2 Single Stage Press is, without question, a triumph of engineering for the dedicated reloader. Its robust construction, derived from RCBS’s commitment to producing equipment for the most demanding applications, ensures unparalleled stability and durability. The ability to adapt it for everything from small pistol cartridges to the mighty .50 BMG with optional kits is a significant advantage that few other single-stage presses can match.

Considering its build quality, longevity, and exceptional performance across a wide range of calibers, the price point, while substantial, represents excellent value for money for the right user. This press is an investment that will pay dividends in consistent, high-quality ammunition for decades.

I would wholeheartedly recommend the RCBS Ammomaster 2 Single Stage Press to any reloader who values precision, strength, and the versatility to tackle larger cartridges. If you are serious about rifle reloading, especially for magnum or large-bore calibers, this press should be at the top of your list.