Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX Review

After the Test: My Review of Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX

For years, I’ve been meticulously working with a variety of reloading dies, but a recent batch of .40 S&W brass presented a specific challenge that nudged me towards the Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX. This unique sizing die, from the reputable Redding Reloading manufacturer, promises a solution for common brass base deformation issues that can plague reloaders. My previous experiences with standard dies sometimes led to slightly misshapen case bases, especially on brass that had been fired and resized multiple times. This often meant cases that wouldn’t reliably feed or seat properly, ultimately reducing case life and requiring more manual correction. I considered a few other brands, but the Push Thru Base Sizing feature, highlighted in its description, piqued my interest as a potential game-changer for ensuring consistent brass dimensions from the base up. The initial impression upon unboxing was one of solid, no-nonsense craftsmanship; it felt substantial and well-machined, offering a quiet sense of confidence. My immediate thought was, “This might just be the fix I’ve been looking for.”

Real-World Testing: Putting Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX to the Test

First Use Experience

My initial testing took place on my dedicated reloading bench, a space familiar with the rhythmic cadence of case tumbling and primer seating. I loaded a series of .40 S&W cases, some of which were already showing signs of minor base deformation from previous resizing cycles, into the die. The setup was straightforward, integrating easily into my existing progressive press. The Push Thru action was immediately apparent; unlike traditional dies that size from the top down, this design applies pressure from the rear. This method proved to be remarkably smooth, and I noticed a distinct lack of the usual subtle ‘crunch’ that can sometimes accompany the resizing of slightly problematic brass. There were no immediate issues or surprises, just a clean, consistent pass of each case.

Extended Use & Reliability

Over several weeks, I processed a significant volume of .40 S&W brass through this Redding die. Its performance remained consistently high, with no noticeable degradation in its ability to return cases to spec. The all-steel construction felt robust, showing no signs of wear even after hundreds of cycles. Cleaning is as simple as a quick wipe-down, and storage is no different from any other die in my collection. Compared to some budget-friendly dies I’ve used in the past, which can develop a slight gritty feel over time, this Redding model maintained its slick operation. It definitely outperforms generic dies when it comes to the critical task of ensuring a properly sized case base, which in turn significantly extends the usable life of the brass.

Breaking Down the Features of Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX

Specifications

The Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX is a precision-engineered component designed for reloaders. It features a two-die set, which includes a Push Thru Full Length Sizing Die with mandrel and a Full Length Depriming/Decapping Die. The sizing die itself is constructed from extra strength steel, which is a critical element for its function. This robust material is crucial because it ensures that the case shaft will not break, even if the brass is sized beyond its optimal dimensions. The die is specifically calibrated for the .40 S&W caliber, making it an ideal fit for those reloading this popular pistol cartridge. The unique double decapping die is another noteworthy feature, designed to efficiently handle the removal of spent primers.

The primary advantage of the Push Thru Base Sizing Die lies in its resizing from the rear of the cartridge case capability. This method virtually eliminates damage to the case base, a common problem with conventional dies that can lead to weakened brass and feeding issues. By fully resizing the case from this unique angle, the Redding Reloading engineers have designed a die set that promises to extend the usable life of your brass significantly. This is a crucial specification for any reloader looking to maximize their investment in ammunition components and ensure consistent performance with every round. The inclusion of a separate depriming die for both top and bottom cases ensures a thorough and efficient resizing process.

Performance & Functionality

The core function of the Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX is to accurately and reliably resize .40 S&W brass. It excels at this task, consistently bringing cases back to within standard specifications, with a particular focus on the integrity of the case base. Its main job is to ensure that the brass is dimensionally sound for reloading, and it does this exceptionally well. The extra strength steel shaft provides the necessary rigidity to handle even challenging brass without deforming itself.

• Strengths: The most significant strength is its elimination of base damage during resizing, a common pain point addressed directly by its design. This translates to extended case life and improved reliability in subsequent reloads. The two-die set configuration is also a plus, offering a complete solution for both sizing and depriming. The smooth operation during the resizing process is another highlight, making it a pleasure to use.
• Weaknesses: While excellent for its intended purpose, it’s important to note that this is a specialized die. If your brass is consistently free from base deformation issues, a standard sizing die might suffice. The price point is also a consideration, as it is positioned as a premium reloading component. However, for the benefits it offers in terms of brass longevity and consistency, the cost is justifiable for dedicated reloaders.

Design & Ergonomics

The design of the Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX is both functional and robust. The all-steel construction gives it a reassuring heft and a feeling of durability that’s expected from a high-quality reloading tool. The finish is typically a matte blued or similar protective coating that resists corrosion and wear, common in the workshop environment.

Ergonomically, it’s designed to fit standard reloading press shell holders. The Push Thru design means the primary interaction is with the press’s ram and the casing itself. There isn’t a tactile ergonomic feature for hand-holding, as it’s meant to be used with mechanical assistance. The mandrel within the sizing die is precisely machined to ensure consistent case neck dimensions, which is critical for accurate bullet seating. The overall feel is one of precise engineering, where every component serves a specific, critical function for optimal reloading outcomes.

Durability & Maintenance

Given its all-steel construction and the reputation of Redding Reloading for quality, the durability of this die is expected to be excellent. Under normal reloading conditions, which involve repeated cycles but not extreme abuse, this die should last for decades. The engineering behind the Push Thru Base Sizing mechanism is sound and doesn’t appear to have inherent weak points that would be prone to failure.

Maintenance is minimal, which is a significant advantage for any reloading tool. A simple wipe-down with a dry cloth after use and perhaps an occasional application of a light lubricating oil or rust inhibitor is all that’s typically needed to keep it in top condition. Storage is straightforward; it fits into standard die cases. There are no small, easily lost parts to worry about, beyond the standard die components. The main concern would be to avoid dropping it on a hard surface, though the robust steel construction should offer some resistance to minor impacts.

Accessories and Customization Options

The Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX is part of a two-die set. This means the primary “accessory” included is the accompanying Full Length Depriming/Decapping Die, which is essential for the complete resizing process. This pairing ensures that users have the necessary tools to address both sizing and primer removal efficiently.

Customization options for this specific die are limited, as it’s a highly specialized tool designed for a precise function. The primary “customization” for reloaders comes in how they integrate it into their press setup and their choice of shell holders. Redding Reloading is known for its quality components, and while there isn’t a way to “modify” the die itself, users can ensure optimal performance by using it with a well-maintained press and the correct shell holder. It’s designed to work with industry-standard reloading presses, offering broad compatibility.

Pros and Cons of Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX

Who Should Buy Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX?

This die set is ideal for the dedicated handloader who frequently reloads .40 S&W ammunition and experiences or wants to prevent case base deformation. It’s perfect for those who shoot a high volume of this caliber and want to maximize the number of times their brass can be safely reloaded. Reloaders who have encountered issues with brass not feeding correctly due to base variations will find this die to be a game-changer.

This product may not be necessary for beginners who are just starting with reloading and are using new brass, or for those who shoot very infrequently and have little concern about case lifespan. If you’re primarily reloading cartridges that are less prone to base deformation or if your budget is extremely limited and you aren’t experiencing specific resizing problems, a standard sizing die might be sufficient. For those investing in the long-term health and reliability of their reloaded ammunition, complementary items like a good case trimmer and case gauge will work exceptionally well with this sizing die.

Conclusion on Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX

The Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX is a testament to thoughtful engineering in the reloading world. It directly addresses a persistent problem that can plague even experienced reloaders: damaged case bases. Its unique Push Thru design, coupled with extra strength steel construction, delivers exceptional performance in preserving brass integrity and extending case life. While its price is higher than a standard die, the value it provides in terms of reduced brass attrition and improved reloading consistency makes it a worthwhile investment for serious .40 S&W enthusiasts. I would absolutely recommend this die set to any reloader who values precision, efficiency, and the longevity of their reloading components. It’s a specialized tool that performs its specific job exceptionally well, offering peace of mind and better results for those who demand it.