What I Found Using the Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66
For those of us who reload ammunition, ensuring precise headspace is paramount for both safety and accuracy. The Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 presents a seemingly straightforward solution to this critical aspect of reloading. My journey to this particular tool was driven by a consistent need for repeatable accuracy and a desire to eliminate variables in my rifle loads. While I’d relied on basic “go/no-go” gauges previously, they only tell you if a cartridge will chamber, not how well it will chamber, or how much stress is being placed on the brass. I was looking for a way to actively control and measure the headspace, aiming for that sweet spot that optimizes bolt-action rifle performance. The initial impression of the Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 was one of utilitarian design; it felt functional, though the aluminum construction did raise a slight question mark about long-term durability compared to brass or steel alternatives. I had briefly considered individual headspace gauges for each cartridge, but the cost and complexity of managing multiple tools made this kit a more appealing prospect. My initial reaction was one of practical anticipation, hoping this tool would finally provide the precise control I was seeking.
Real-World Testing: Putting Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 to the Test
First Use Experience
My initial testing of the Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 took place right at my reloading bench, a familiar environment where precision is not just desired, but essential. I measured fired cases from several of my precision bolt-action rifles, specifically focusing on bottleneck cartridges where headspace control is most impactful. The process was straightforward: I’d place a fired case into the gauge, insert the appropriate bushing, and then use my digital calipers to measure the distance from the case head to the datum line. I found the setup intuitive, requiring minimal fumbling to get started, though I quickly realized the necessity of a separate anvil for my calipers to ensure consistent, stable measurements. This tool immediately felt more insightful than a simple go/no-go gauge, offering a quantifiable reading that could be used to adjust sizing dies. There were no immediate surprises or quirks in this initial use, just a clear, repeatable measurement that translated directly into adjustments for my resizing die.
Extended Use & Reliability
After several months of consistent use, the Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 has become an indispensable part of my reloading process. I’ve used it to dial in headspace for multiple calibers, from .223 Remington to .300 Winchester Magnum, and it has performed reliably. The aluminum construction, while initially a point of slight concern, has shown no significant signs of wear or performance degradation. I’ve inadvertently dropped it on the concrete floor of my workshop a couple of times, and it still functions perfectly, albeit with a few new scuff marks. Maintenance is almost non-existent; a quick wipe-down with a dry cloth after use is all that’s typically needed. Compared to my prior method of relying on neck-sizing and “feeling” for shoulder bump, this gauge provides objective data, significantly improving consistency and allowing me to achieve smaller groups at the range. It certainly surpasses the accuracy of purely subjective methods and offers a more controlled approach than some more rudimentary tools I’ve encountered.
Breaking Down the Features of Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66
Specifications
The Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 is a precision tool designed to measure the headspace of fired cartridge cases. It typically comes with five interchangeable bushings, usually covering a range of common cartridge shoulder dimensions. These bushings, along with the main gauge body, are commonly constructed from anodized aluminum, offering a balance of light weight and reasonable durability for bench use. The kit’s primary function is to interface with standard digital calipers, allowing for precise measurements of case headspace. This specific set, priced around $48.89, is designed to be an accessible entry point into headspace control for reloaders. The inclusion of five distinct bushings means it can accommodate a variety of cartridge shoulder diameters, making it more versatile than a single-purpose gauge. While the aluminum is functional, some users might prefer the added weight and perceived longevity of brass or steel for more demanding applications.
Performance & Functionality
In terms of its core function, the Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 performs admirably. It consistently provides accurate measurements of fired case headspace, enabling reloaders to precisely set their sizing dies. The ability to quantify the shoulder bump by .001 or .002 inches, as many users aim for, is where this tool truly shines. This level of control directly translates to more consistent neck tension and ejection reliability, particularly in bolt-action rifles. A key strength is its simplicity and the direct feedback it offers. However, a notable weakness is the reliance on external calipers, and the fact that the necessary anvil for stable caliper use is not included in the kit. Without this anvil, achieving truly repeatable measurements can be more challenging. Despite this, it meets and often exceeds expectations for its price point, providing a tangible improvement in reloading accuracy.
Design & Ergonomics
The design of the Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 is decidedly utilitarian. The main body is a sturdy, anodized aluminum cylinder, featuring a recess for the case head and a precisely machined opening for the interchangeable bushings. The bushings themselves are similarly machined, designed to seat snugly within the main gauge. Its ergonomic appeal lies in its simplicity; it’s essentially a fixture to hold a case in a specific orientation for measurement with calipers. There’s no inherent comfort or grip to consider in the traditional sense, as it’s designed to be held steady with one hand while calipers are manipulated with the other. The clear markings on the bushings (or the assumption of specific sizes within the set) aid in selecting the correct one, though a dedicated chart or labeling would be a welcome addition. The smooth finish of the aluminum is pleasant to the touch, and the overall feel is one of a well-machined, purpose-built tool.
Durability & Maintenance
Regarding durability, the Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66, made primarily of anodized aluminum, is adequately durable for its intended use at a reloading bench. It’s not designed for heavy industrial use or rough handling, but for home reloading, it should last a very long time. The anodizing offers some protection against minor scratches and corrosion. Maintenance is minimal; a simple wipe-down with a soft cloth after each use will keep it free from debris and prevent any potential buildup that could affect accuracy. It’s crucial to keep the bushing interfaces clean and free of grit, as any foreign material could lead to slightly skewed measurements. I haven’t experienced any failure points with this gauge itself, though I do treat it with care, recognizing that dropped aluminum parts can deform or lose their precise tolerances over time. It’s a tool that requires respect for its precision, not brute force.
Accessories and Customization Options
The Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 is a relatively self-contained unit, but its functionality is intrinsically linked to an external accessory: a set of calipers. While the gauge and its included bushings are the core components, the effectiveness of the system is heavily dependent on the quality and precision of the calipers used. It’s worth noting that a separate caliper anvil is a highly recommended, almost essential, addition to ensure consistent and accurate readings, as it provides a stable surface for the calipers to rest against. While the gauge itself doesn’t offer internal customization, its compatibility is with any standard digital or dial calipers that can accommodate the bushing dimensions and measure to the required precision (typically .001 inches). No other accessories are typically included or suggested for this specific kit, emphasizing its focused role in headspace measurement.
Pros and Cons of Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66
Pros
- Precision Control: Significantly enhances reloading accuracy by allowing precise control over case headspace.
- Affordable Entry: Offers a cost-effective way to measure and control headspace, making precision reloading more accessible.
- Ease of Use: The system is straightforward to set up and use, even for relatively new reloaders.
- Versatility: The five included bushings accommodate a range of popular cartridge types.
- Improved Brass Life: By optimizing headspace, it reduces stress on fired brass, potentially extending its useful life.
Cons
- Calipers Not Included: Requires the purchase of separate digital calipers, adding to the overall cost.
- Anvil Not Included: A caliper anvil is highly recommended for stable measurement but is an additional purchase.
- Aluminum Construction: While functional, the aluminum build may raise concerns about long-term durability and accuracy compared to steel or brass alternatives.
- Potential for Duplicates: As noted in user feedback, there’s a risk of receiving duplicate bushings instead of a full set, requiring customer service intervention.
Who Should Buy Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66?
This headspace gauge set is an excellent choice for any handloader who shoots bottleneck rifle cartridges and is serious about maximizing accuracy and consistency. It is particularly beneficial for those loading for bolt-action rifles, where precise headspace control directly impacts shot-to-shot variation. Shooters who frequently reload for precision rifle competitions, varmint hunting, or simply want to refine their loads will find significant value in this tool. It’s also a great option for reloaders who are graduating from basic reloading techniques and want to delve deeper into case preparation.
However, individuals who only reload straight-walled cartridges or who are satisfied with basic “go/no-go” gauge functionality might not need this level of precision. Those looking for an all-inclusive solution out of the box should be prepared to purchase calipers and an anvil separately. It’s not a tool for someone who needs ruggedness for field use; its place is firmly on the reloading bench.
Conclusion on Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66
The Hornady Lock-N-Load Headspace Gauge With Five Bushings HK66 is a valuable tool for any serious rifle reloader looking to gain precise control over their ammunition. While the aluminum construction might not inspire the same confidence as a solid steel instrument, its performance and the quantifiable data it provides are undeniable. The ability to fine-tune headspace and achieve more consistent, accurate loads, coupled with its accessible price point, makes it a compelling addition to any reloading bench. For the price, the value proposition is strong, especially when compared to more expensive, specialized headspace measurement systems. I would readily recommend this gauge set to any reloader who understands the importance of headspace and is looking for an effective, practical way to measure and control it. It’s not a perfect tool, but it’s a highly effective one that delivers on its promise of precision reloading.