Mec 650 Primer Seating Assembly 12 Ga. Review

The Truth About Using the Mec 650 Primer Seating Assembly 12 Ga.

For anyone involved in reloading, especially with 12-gauge shotgun shells, precision and consistency in primer seating are paramount. The Mec 650 Primer Seating Assembly 12 Ga. is a critical component for achieving this accuracy. It’s a part that, while seemingly small, has a disproportionate impact on the reliability of your reloaded ammunition.

My journey to this particular primer seating assembly began after a frustrating session where a batch of reloaded shells exhibited inconsistent ignition. I was troubleshooting through potential causes, and it became clear that the primer seating depth was a likely culprit. When a primer is seated too deep, it can interfere with internal components, leading to ignition issues; seated too high, it can cause functioning problems in semi-automatic actions.

Upon receiving the Mec 650 Primer Seating Assembly 12 Ga., my initial impression was one of solid engineering. The unit felt substantial, and the materials suggested it was built for the rigors of a reloading bench. I had briefly considered a universal primer seating tool, but the specificity of a dedicated press component like this one for my MEC 650 felt like the more reliable path. My first reaction was a quiet sense of confidence, a feeling that this small piece of equipment would bring the consistency I needed.

Real-World Testing: Putting Mec 650 Primer Seating Assembly 12 Ga. to the Test

First Use Experience

I installed the new primer seating assembly on my MEC 650 press, located on my dedicated reloading bench in a climate-controlled workshop. The installation was straightforward, as expected for a component designed to be a direct replacement. My testing focused on seating primers in newly primed hulls after resizing and de-priming, a standard part of my reloading process.

During this initial testing, the component performed flawlessly. The primers seated with a consistent, satisfying feel, and each one achieved a uniform depth, flush with the hull base. There were no instances of primers being pushed too deep or not seated fully, even with different primer brands I had on hand, such as Federal and Remington.

The ease of use was immediate; there was no discernible learning curve. The operation felt natural within the established rhythm of my press strokes. The only minor surprise was how unremarkable the experience was – in the best possible way. It simply did its job exactly as intended, without fuss or complication, which is precisely what you want from a critical reloading component.

Extended Use & Reliability

After several weeks and hundreds of rounds processed through my press, the Mec 650 Primer Seating Assembly 12 Ga. has proven to be incredibly reliable. It has become an integral, almost unnoticed, part of my reloading workflow, which is the highest compliment I can give to such a component.

Durability is not an issue whatsoever. The steel construction is robust, and there are no signs of wear, such as stress marks, deformation, or any reduction in its seating precision. Even with repeated exposure to hull dust and the slight metallic residue common in reloading environments, its performance remains consistent.

Maintenance and care are minimal, which is ideal for a part that’s meant to be a workhorse. A quick wipe down with a dry cloth after a long reloading session is usually all that’s needed. Unlike some cheaper alternatives I’ve encountered in other areas of my equipment, there’s no stiffness developing or any need for lubrication. Compared to the often finicky and less precise universal tools, this dedicated unit far surpasses them in terms of long-term reliability and ease of operation.

Breaking Down the Features of Mec 650 Primer Seating Assembly 12 Ga.

Specifications

The Mec 650 Primer Seating Assembly 12 Ga. is constructed primarily from steel, ensuring its durability and ability to withstand the forces involved in primer seating. Its black & silver finish provides a classic look and offers some basic protection against corrosion. This assembly is specifically designed for 12-gauge shells and is intended for use with the MEC 650 progressive reloading press.

The steel construction is a critical specification because it guarantees a rigid and precise seating action, preventing any flex that could lead to inconsistent primer depth. The gauge specificity means it’s perfectly contoured for 12-gauge hulls, ensuring proper alignment and seating of primers. This level of specificity is what sets dedicated press components apart from more generic tools.

Performance & Functionality

The primary job of the Mec 650 Primer Seating Assembly 12 Ga. is to seat primers to the correct depth within the hull. It performs this function with exceptional accuracy and consistency. Every primer seated with this assembly sits perfectly flush, eliminating the risk of ignition failures or bolt-slam issues associated with improperly seated primers.

Its greatest strength is its unwavering reliability and precision; it does exactly what it’s designed to do, every single time. I haven’t identified any significant weaknesses. It consistently meets and often exceeds the expectations for such a component, especially considering its accessible price point.

Design & Ergonomics

The design of this primer seating assembly is a testament to functional simplicity and robust engineering. The steel build gives it a solid, premium feel, and the black & silver finish is both aesthetically pleasing and practical. It’s not a component you hold in your hand for extended periods, but its integration into the press mechanism means its design directly impacts the feel and consistency of the reloading stroke.

Its integration into the MEC 650 press is seamless, contributing to an ergonomic reloading process. There’s no awkwardness or complex adjustment required; the assembly works in harmony with the press’s existing mechanism, making the entire operation smooth and intuitive. The precision of the seating action, thanks to its design, translates directly into a better overall reloading experience.

Durability & Maintenance

Given its steel construction and simple design, the Mec 650 Primer Seating Assembly 12 Ga. is built for longevity. Under normal reloading use, this component is essentially a lifetime part; it’s unlikely to wear out or require replacement unless subjected to extreme abuse.

Maintenance is refreshingly straightforward. A light application of gun oil or a simple wipe-down is sufficient to keep it in optimal condition and prevent any minor corrosion, though its finish offers decent protection. There are no apparent failure points I’ve encountered in my usage.

Accessories and Customization Options

As a specific component for a reloading press, the Mec 650 Primer Seating Assembly 12 Ga. typically does not come with separate accessories. Its function is intrinsically tied to the press it’s designed for. There are no significant customization options beyond ensuring it’s properly installed and maintained.

However, its compatibility with the MEC 650 press means it benefits from the press’s overall design. The press itself is known for its modularity, but the primer seating assembly is a core, non-interchangeable part of that system.

Pros and Cons of Mec 650 Primer Seating Assembly 12 Ga.

Who Should Buy Mec 650 Primer Seating Assembly 12 Ga.?

This primer seating assembly is an absolute must-have for any reloader who owns a MEC 650 press and is serious about 12-gauge shotgun shell reloading. If you are experiencing inconsistent ignition or functioning issues with your reloads, upgrading or replacing this component is a logical and effective step. It’s ideal for both intermediate reloaders looking to refine their process and experienced users who demand the highest level of consistency.

Anyone using a generic primer seating tool for their 12-gauge loads on a MEC 650 would benefit immensely from this dedicated assembly. Conversely, if you don’t own a MEC 650 press, this component would be incompatible and thus unsuitable for your needs. For those reloading other gauges, a different MEC primer seating assembly would be required. No specific accessories are essential, but ensuring your press is clean and well-maintained will maximize the performance of this assembly.

Conclusion on Mec 650 Primer Seating Assembly 12 Ga.

The Mec 650 Primer Seating Assembly 12 Ga. is a small component that delivers a significant impact on the quality and reliability of reloaded ammunition. Its steel construction, precise engineering, and direct compatibility with the MEC 650 press make it an indispensable part of the reloading process for 12-gauge shells. The performance and consistency it provides are exactly what any serious reloader needs to ensure their ammunition functions flawlessly.

Considering its build quality, longevity, and the critical role it plays in preventing reloading errors, the price is more than justified by its value. I would wholeheartedly recommend this primer seating assembly to anyone using a MEC 650 for 12-gauge reloads. It’s not just a replacement part; it’s an investment in the accuracy and reliability of your hand-loaded shells.