Mec 600 Primer Seating Pad Review

What Happened When I Tried the Mec 600 Primer Seating Pad

As someone who’s spent over a decade meticulously working with gear across diverse environments, from the controlled sterility of a lab to the rugged unpredictability of field operations, I’ve developed a keen eye for what works and what doesn’t. The Mec 600 Primer Seating Pad is a small, unassuming component, but in the world of reloading, such parts can make a significant difference in consistency and safety. My need for this specific item arose from a recurring frustration: inconsistent primer seating on my MEC progressive press, specifically the 650 Grabber I’ve relied on for years. This minor inconsistency, while not catastrophic, can lead to subtle variations in pressure and, ultimately, less predictable ballistic performance – something no serious reloader wants.

I’d been experiencing occasional primers that weren’t seated quite flush, sometimes leading to misfires or sticky bolt issues, particularly when pushing loads. It’s the kind of problem that gnaws at you, a small imperfection in an otherwise smooth process. The existing pad on my press, while functional, had seen better days and perhaps had lost some of its intended spring tension or resilience. I briefly considered generic rubber pads or even fabricating a simple felt washer, but the thought of compromising the integrity of my reloads with an unproven, DIY solution felt like a false economy. The authenticity and guaranteed compatibility offered by an OEM part from MEC were paramount. My initial impression upon receiving the new pad was one of practical simplicity; it’s a sturdy-feeling piece of steel, precisely formed, with a clean, unadorned black finish.

Real-World Testing: Putting Mec 600 Primer Seating Pad to the Test

My testing environment for the Mec 600 Primer Seating Pad was my dedicated reloading bench, a space that has seen thousands of rounds processed. The primary scenario involved integrating this new component into my established MEC 650 Grabber setup. I meticulously replaced the old seating pad with the new MEC unit, ensuring it was correctly seated within the press’s primer seating mechanism. My initial setup was straightforward, requiring no special tools beyond what’s standard for press maintenance.

The first few cycles on the press were telling. The primer seating felt noticeably more consistent, with a firm, positive ‘thunk’ each time a primer was properly seated. I ran through a batch of 50 rounds, paying close attention to the feel of the lever stroke and the visual inspection of each primer post-seating. This specific pad performed admirably, exhibiting no signs of stiffness or undue resistance, which could have indicated a fitment issue or manufacturing defect. It simply worked as intended, providing a stable yet yielding surface for primer insertion.

First Use Experience

My testing began on my home reloading bench, a space that is usually kept clean and organized. The conditions were standard for reloading: controlled temperature and humidity, with good lighting. I integrated the Mec 600 Primer Seating Pad into my MEC 650 Grabber press immediately after unboxing. The transition was intuitive; the spring pad simply drops into place.

My initial observation was the consistency of the primer seating. Each primer felt like it was going in at the exact same depth, with no “high” or “low” primers noted in the initial run. This immediate feedback was a welcome change from the occasional inconsistencies I’d experienced before. There were no surprises or quirks; the pad performed its singular function with efficiency.

Extended Use & Reliability

After processing several hundred rounds of various calibers (primarily 12 gauge and .45 ACP, both common for my MEC presses), the Mec 600 Primer Seating Pad has held up remarkably well. It’s become a silent, dependable part of the reloading process. There are no visible signs of wear, such as deformation, corrosion, or any loss of its spring-like resistance.

Maintenance for this component is virtually non-existent, which is precisely what you want from a part like this. A quick wipe-down with a cloth when cleaning the press is all that’s ever needed. Compared to the previous, likely original, pad which had begun to show minor signs of compression over the years, this new steel unit promises longevity. It feels like it will last for many, many more years, easily outlasting many other consumable parts on the press.

Breaking Down the Features of Mec 600 Primer Seating Pad

Specifications

The Mec 600 Primer Seating Pad is engineered with simplicity and effectiveness at its core. According to MEC‘s specifications, this component is constructed from steel, which provides inherent durability and consistent spring tension. It is designed as a one size fits all solution for any MEC progressive loader manufactured after 1982, including the popular 650 Grabber and the 9000 Series. This standardization is a significant advantage, ensuring broad compatibility without the need for multiple part numbers.

The material choice of steel is critical here. Unlike softer materials that can compress and degrade over time, steel offers excellent resilience and maintains its shape and spring characteristics for extended periods. This ensures consistent primer seating depth, which is crucial for reliable ignition and consistent shot-to-shot performance. The black finish likely serves a dual purpose: corrosion resistance and a clean aesthetic that matches the industrial look of the reloading press.

Performance & Functionality

The primary job of the Mec 600 Primer Seating Pad is to provide a reliable and consistent surface for seating primers into cartridge cases on a progressive reloading press. In this regard, it excels. The steel construction imparts just the right amount of spring tension and firmness.

This firmness ensures that primers are seated fully without excessive force, but it also provides enough feedback through the press handle to feel when a primer is properly seated. I noticed a marked improvement in primer seating consistency across different brands and types of primers. This directly translates to a higher confidence level in the reloaded ammunition produced.

Design & Ergonomics

The design of this primer seating pad is utilitarian and focused on function. Its steel construction means it feels robust and precisely manufactured. It’s a simple, stamped or formed piece of metal that is designed to fit snugly into its designated spot within the primer seating mechanism of the press.

There is no ergonomic complexity to consider, as the user doesn’t directly interact with it beyond its integration into the press. The MEC brand name implies a certain standard of manufacturing, and this part meets that expectation with its clean lines and solid feel. It’s a component that you install and then essentially forget about, trusting it to do its job flawlessly.

Durability & Maintenance

Durability is where a steel component like the Mec 600 Primer Seating Pad truly shines. Unlike rubber or plastic alternatives that can crack, tear, or lose their spring over time, steel is exceptionally resistant to wear and tear. The quality materials and workmanship mentioned by MEC suggest this part is built to last for decades of regular use.

Maintenance is practically nonexistent. Given its location within the press, it’s largely protected from dust and debris. A simple wipe-down during routine press cleaning is sufficient to keep it in optimal condition. There are no moving parts to lubricate or complex surfaces to clean, making it a worry-free component.

Accessories and Customization Options

The Mec 600 Primer Seating Pad is a singular component; it does not come with any accessories, nor does it have customization options in the traditional sense. Its value lies in its perfect fit and function as an original replacement part. Being an OEM part from MEC, it is designed to work seamlessly with their presses without requiring any modifications or aftermarket add-ons.

The lack of accessories is not a drawback here; it’s simply a reflection of its specific purpose. If you own a compatible MEC press, this pad is essentially the correct and only option for its intended function. Compatibility with other brands is not applicable, as it is designed exclusively for MEC equipment.

Pros and Cons of Mec 600 Primer Seating Pad

Who Should Buy Mec 600 Primer Seating Pad?

This part is an absolute must-have for any reloader who owns a compatible MEC progressive press and is experiencing issues with primer seating consistency. If you’re a meticulous reloader who demands precision and reliability in your ammunition, and you own a MEC 650 Grabber, 9000 Series, or similar model made post-1982, this is the component you need. It’s ideal for those who have noticed primers not seating perfectly flush, leading to potential ignition failures or cycling problems.

Those who should probably skip this item are individuals who do not own a MEC press from the specified production era, or those who are not experiencing any primer seating issues with their current setup. For individuals using non-MEC presses, this pad will not be compatible. For those seeking to upgrade their press with advanced features, this is a replacement part, not an enhancement. No specific must-have accessories are needed for this part; its function is self-contained within the press.

Conclusion on Mec 600 Primer Seating Pad

The Mec 600 Primer Seating Pad is a testament to the fact that even the smallest components can have a significant impact on the performance of complex machinery. For its modest price of $4.49, it delivers exceptional value by restoring critical consistency to the primer seating process on compatible MEC progressive presses. The steel construction ensures it will perform reliably for years to come, offering a durable and dependable solution to a common reloading frustration.

I wholeheartedly recommend this part to any reloader who fits the compatibility criteria and is experiencing less-than-perfect primer seating. It’s an inexpensive, effective, and essential fix that brings a renewed sense of precision and confidence to your reloading bench. If your MEC press was made after 1982 and you’re chasing those elusive consistent primers, don’t hesitate – grab this pad.