Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads Review

One Week with the Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads

For years, my cast bullet reloading process involved a separate lubing and sizing step, a necessary but often time-consuming ritual. The prospect of streamlining this with a dedicated tool, specifically for my .284 caliber projects, led me to the Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads. Lee Precision has a long-standing reputation for providing functional, no-frills reloading equipment, and this kit promised a faster, easier way to prepare my cast bullets.

The specific issue that spurred this purchase was the increasing volume of .284 diameter cast bullets I was preparing for a particular rifle build. Manually applying lube and then running each bullet through a sizing die was becoming a bottleneck in my production. I had considered some higher-end automated systems, but their price point was prohibitive for my current needs. Lee’s offering, with its promise of direct integration into a standard reloading press, seemed like a pragmatic and cost-effective solution.

Upon unboxing, the kit presented a familiar Lee aesthetic: robust, utilitarian, and clearly designed for function over form. The main components, the sizing die and the lube system, felt solid, as did the included container for the sized bullets. It lacked the polished sheen of some premium brands, but there was an undeniable sense of durability that comes from well-machined steel and a straightforward design. My initial impression was one of practical efficiency; this wasn’t about making pretty tools, it was about getting a job done.

In my brief contemplation phase, I’d glanced at universal lube-sizers that require separate presses, and some bench-mounted units. However, the direct press integration of this Lee kit, along with its compact footprint, made it stand out as the most efficient option for my existing setup. My immediate reaction upon assembling it onto my press was a quiet sense of anticipation, a feeling that a tedious process was about to become significantly less so.

Real-World Testing: Putting Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads to the Test

First Use Experience

My initial testing took place at my reloading bench, a familiar environment that has seen countless rounds come to fruition. I’d prepared a batch of freshly cast .284 diameter bullets, still warm from the mold, eager to see how this kit would handle them. The die screwed easily into my RCBS Rockchucker press, the standard 7/8″ x 14″ threads providing a secure fit.

Loading the lube was straightforward; the kit employs a simple push-rod mechanism to transfer lube from the reservoir onto the bullet as it passes through the die. The process of running bullets through was surprisingly smooth. The bullets fed nose-first, and the integrated seating of gas checks, if applicable, was a noticeable benefit. The captured bullet container at the bottom of the die also worked effectively, preventing bullets from rolling across the bench.

The primary performance metric here is the consistency of both lubrication and sizing. I found that after a few initial bullets where the lube distribution seemed to be evening out, subsequent bullets emerged consistently coated and within the desired .284 diameter. There was no measurable oversizing or undersizing, and the lube applied was evenly distributed without excess pooling.

Extended Use & Reliability

After several reloading sessions, spanning perhaps a few hundred bullets, the Lee 90170 Lube & Sizing Kit has proven to be a reliable workhorse. The die continues to size accurately, and the lube system consistently delivers a sufficient coating without gunking up the die or the press. I haven’t observed any degradation in performance, nor any signs of premature wear on the die or the internal components of the lube system.

Maintenance is minimal, which is a significant plus for any reloading tool. A quick wipe-down after use, and occasionally flushing the lube reservoir with a solvent to prevent build-up, is all that’s required. I haven’t had to disassemble the lube mechanism for cleaning, and the die itself wipes clean easily. Compared to my previous method of hand-lubing and then sizing in separate steps, this integrated kit is vastly superior in terms of speed and convenience.

Compared to some older, more primitive sizing dies I’ve encountered, this kit’s integrated lubing feature is a game-changer. Those older dies often required manual application of lube or a separate lubing process that was prone to inconsistency. This Lee kit’s design ensures a uniform application every single time a bullet passes through.

Breaking Down the Features of Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads

Specifications

The Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads is designed for ease of use and integration into standard reloading presses. The kit includes a sizing die with a .284″ diameter sizing aperture, precisely machined to ensure consistent bullet dimensions. Its 7/8″ x 14″ threads guarantee compatibility with virtually all single-stage and turret reloading presses on the market, a critical feature for broad usability.

The lube reservoir, while not specifically quantified in volume, is ample enough for processing a significant batch of bullets before needing a refill. The kit automatically seats and crimps gas checks onto the bullet base during the sizing process, a convenience that streamlines the operation. All processed bullets are captured in a dedicated container, preventing them from scattering.

This combination of standard threading, precise sizing, integrated lubing, and gas check seating makes this kit a practical all-in-one solution for cast bullet preparation. The .284″ sizing is specific, meaning this kit is tailored for cartridges using bullets of that diameter, such as the .284 Winchester or 7mm Remington Magnum, among others.

Performance & Functionality

The primary function of this kit is to accurately size and lubricate cast bullets in one smooth operation, and it excels at this task. The sizing is consistent, ensuring that each bullet meets the specified diameter, which is crucial for proper fit in cartridges and reliable chambering. The lubrication provided is even and sufficient, protecting the bore from lead fouling during firing.

A significant strength of this model is its efficiency. By combining two distinct steps into one press stroke, it dramatically speeds up the bullet preparation process. This is especially beneficial when preparing large quantities of ammunition. The automatic gas check seating is another notable advantage, eliminating a separate manual step.

However, it’s important to note that this kit is designed for standard 7/8″ x 14″ threads, which is common but could theoretically pose an issue if someone has an unusually non-standard press. While not a fault of the kit itself, it’s a consideration for system compatibility. Additionally, the lubricant used is Lee’s proprietary lube, which performs well but may not be the preferred choice for all users; some might prefer to substitute their own custom lube if compatibility is confirmed.

Design & Ergonomics

The design of the Lee 90170 Lube & Sizing Kit is purely utilitarian, focusing on robust construction and operational simplicity. The main body of the die is crafted from hardened steel, providing excellent durability and resistance to wear. The lube dispensing mechanism is a simple plunger system, which is intuitive and easy to operate, even with gloves on.

Ergonomically, it’s designed to be installed and operated within a reloading press, so direct handling is minimal. The standard 7/8″ x 14″ thread allows for easy installation and removal without requiring special tools. The included bullet collection container is a practical touch, keeping the work area tidy and preventing lost bullets.

While not designed for aesthetic appeal, the no-nonsense design translates to a tool that is easy to understand and use right out of the box. There’s no complex setup or adjustment beyond initial installation and filling the lube reservoir. This simplicity is a core strength for any reloading tool, where reliability and ease of operation are paramount.

Durability & Maintenance

Based on its construction and the typical longevity of Lee Precision reloading dies, this lube and sizing kit is expected to provide many years of service. The hardened steel construction means it can withstand the rigors of repeated use in a reloading press without showing significant wear. The lube system components, being relatively simple mechanical parts, are also likely to be very durable.

Maintenance is straightforward, primarily involving keeping the die clean and the lube reservoir filled. After each session, a simple wipe-down with a clean cloth is sufficient. For deeper cleaning, particularly of the lube reservoir if a different lubricant is used, a simple flush with a suitable solvent should suffice.

There are no apparent points of failure that stand out immediately. The most likely wear point would be the sizing aperture itself over many thousands of bullets, but this is a common characteristic of all sizing dies. The gas check seating mechanism is also quite robust and unlikely to cause issues.

Accessories and Customization Options

The Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads comes as a complete, ready-to-use unit. The primary included “accessory” is the bullet collection container, which neatly captures sized bullets. The kit is designed to work with Lee’s proprietary bullet lubricant, which is typically sold separately or may come in a starter quantity with some kits.

Customization options are somewhat limited in the traditional sense, as the kit is purpose-built for .284 diameter sizing. However, the user can choose to use a different lubricant if they wish, provided it’s compatible with the die and the reloading process. The standard 7/8″ x 14″ threads mean it integrates seamlessly with most presses, but the press itself and its dies are the primary customization points. Lee does offer various sizing dies in different diameters and with different crimping options, but this particular kit is fixed to the .284 sizing specification.

Pros and Cons of Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads

Who Should Buy Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads?

This kit is an ideal purchase for any handloader who frequently casts and prepares bullets for cartridges chambered in calibers requiring a .284″ bullet diameter, such as the .284 Winchester, 7mm Remington Magnum, 7mm-08 Remington, or .280 Remington. It’s particularly suited for those who are currently hand-lubing and sizing separately and wish to significantly speed up their reloading process. Reloaders looking for a budget-friendly yet effective solution to improve their cast bullet preparation will find this kit a worthwhile investment.

Those who only cast bullets for a single specific caliber in this diameter range, and are content with standard Lee lubricants, will benefit the most. Conversely, individuals who primarily cast for a wide variety of calibers will need to purchase multiple kits, or consider a universal sizing die with a separate lubing system. Shooters who demand sterile, medical-grade lubrication or are working with extremely exotic alloys might need to investigate specialized aftermarket lubricants.

For optimal use, I’d recommend ensuring you have a good supply of your preferred lubricant (or Lee’s) readily available. A sturdy reloading press is, of course, essential, and having a small brush for quick cleaning of the die after use will help maintain its performance.

Conclusion on Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads

The Lee 90170 Lube & Sizing Kit One Kit .284 Standard 7/8″ X 14″ Threads is a testament to Lee Precision’s philosophy of providing functional, affordable, and effective reloading tools. It successfully integrates two critical bullet preparation steps into one efficient operation, saving valuable time for handloaders. The consistent sizing and lubrication it provides are excellent, especially considering its modest price point.

For its intended purpose—preparing .284″ diameter cast bullets—this kit offers exceptional value. The build quality is robust enough for long-term use, and the operational simplicity makes it accessible even for newer reloaders. While it’s dedicated to a single diameter, its effectiveness within that niche is undeniable.

I would unequivocally recommend this lube and sizing kit to any handloader who needs to prepare .284 cast bullets and wants a faster, more streamlined process. It delivers on its promises, making a tedious part of reloading significantly more manageable and efficient. If you’re in the market for a no-frills, high-performance solution for your 7mm bullet needs, this Lee kit is a smart choice.