Elevate Your .45 Colt Reloading: The Lee Powder Through Expanding Die

For dedicated handloaders of the venerable .45 Colt cartridge, achieving precision, efficiency, and consistency is paramount. Whether you're a seasoned reloader seeking to optimize your workflow or a newcomer building your ideal setup, understanding the nuances of each component is crucial. Among the most innovative solutions designed to streamline the reloading process is the Lee Powder Through Expanding Pistol Die for .45 Colt. This specialized die isn't just another tool; it’s a foundational element that combines two critical steps into one fluid motion, significantly enhancing your reloading experience.

Why Handloaders Need an Efficient Expanding Die for .45 Colt

Reloading .45 Colt, a cartridge beloved for its power and historical significance, demands careful attention to detail. One of the initial and most vital steps in preparing brass is expanding the case mouth. This seemingly simple action serves several critical purposes:

• Preventing Bullet Deformation: Without proper expansion, attempting to seat a bullet into a case can shave lead from the bullet base or deform jacketed bullets, compromising accuracy and potentially leading to dangerous pressure issues.
• Ensuring Consistent Seating: A properly expanded case mouth allows the bullet to enter the case uniformly, promoting straight bullet seating and reducing runout.
• Protecting Your Brass: Forcing a bullet into an unexpanded case can crimp or damage the case mouth, shortening the lifespan of your valuable brass.

Traditionally, expander dies perform this task independently. However, the ingenuity of the Lee Powder Through Expanding Die lies in its ability to combine case mouth expansion with a precise powder charge, all in a single station. This integration is a game-changer for reloaders focused on optimizing their time and maximizing their output without sacrificing accuracy or safety.

Unpacking the Innovation: How the Lee Powder Through Expanding Die Works

At its core, the Lee Powder Through Expanding Die (specifically the 90586 model for .45 Colt) is engineered to tackle two essential reloading steps simultaneously. Its design is both clever and practical, catering to the needs of modern handloaders using progressive or turret presses, though it's equally beneficial on a single-stage press.

The mechanism is straightforward yet highly effective:

1. Case Insertion: As the .45 Colt case moves into the die, it encounters a precision-machined expander plug. This plug gently flares the case mouth to the ideal dimension, preparing it for smooth bullet seating.
2. Powder Delivery: Crucially, the expander plug is hollow. This allows a direct path for powder to flow from a compatible Lee powder measure (like the Auto-Disk or Pro Auto-Disk) or through a powder funnel adapter. As the case is expanded, it also receives its precise powder charge.
3. Controlled Expansion and Charge: The design ensures that the case is expanded uniformly while the powder measure dispenses a consistent charge based on your chosen settings. This synchronized action eliminates the need for a separate powder drop station, freeing up a valuable spot on your press and reducing the total number of operations per round.

This dual-functionality is particularly advantageous for reloaders using multi-station presses, as it consolidates two distinct operations into one, significantly speeding up the overall reloading process.

Core Features that Define the 90586 Model

The Lee 90586 Powder Through Expanding Pistol Die for .45 Colt is built with specific attributes that contribute to its performance and longevity:

• Caliber Specificity: Engineered precisely for .45 Colt (also known as .45 Long Colt), ensuring perfect fit and function for this iconic cartridge.
• Robust Construction: Crafted from durable steel, designed to withstand the rigors of high-volume reloading, providing years of reliable service.
• Integrated Design: Seamlessly integrates with Lee's popular Auto-Disk and Pro Auto-Disk Powder Measures, allowing for direct powder charging. It also accommodates a powder funnel adapter for manual powder dispensing, offering flexibility.
• Single-Component Solution: This die provides a comprehensive solution for both case expansion and powder charging in one compact unit.

For those wondering, "What is the best die for consistent .45 Colt powder charges and case preparation?" the Lee 90586 stands out as a top contender, offering a unique blend of efficiency and precision.

The Tangible Benefits for the .45 Colt Handloader

Investing in the right reloading tools translates directly into better results and a more enjoyable experience. The Lee Powder Through Expanding Die offers a multitude of benefits that impact both the quality of your ammunition and the speed of your production:

Unmatched Efficiency and Speed

• Reduced Stations: By combining two operations, this die frees up a station on your progressive or turret press. This allows for additional steps like a separate crimp die or a case feeder, further optimizing your setup.
• Faster Cycle Times: Fewer operations per cartridge mean you can produce more finished rounds in less time. This is invaluable for high-volume shooters or those preparing for competitions.
• Streamlined Process: The intuitive design simplifies the reloading sequence, making it easier to manage and reducing the chance of missed steps.

Enhanced Consistency and Accuracy

• Uniform Case Expansion: The precision-machined expander ensures every .45 Colt case mouth is expanded consistently, critical for straight bullet seating and preventing issues like bullet tilt.
• Reliable Powder Charging: When paired with a Lee powder measure, this die delivers consistent powder charges directly into the case, minimizing variations that can affect accuracy and velocity.
• Reduced Handling: Fewer times a case is handled or moved between stations means less opportunity for inconsistencies or errors to creep into the process.

Greater Safety and Peace of Mind

• Prevention of Over-Crimping: By ensuring proper case expansion, the die helps prevent scenarios where a bullet is forced into an undersized case, potentially leading to excessive pressure during crimping or firing.
• Accurate Powder Charges: Consistent powder drops are fundamental to reloading safety, preventing both under-charges (which can lead to squibs) and over-charges (which can result in dangerous pressures).
• Simplified Visual Inspection: With two steps consolidated, it can be easier to visually confirm both case mouth preparation and powder presence before moving to the next stage.

If you’re asking, "How can I make my .45 Colt reloading faster and more accurate?" the answer often begins with optimizing your die setup, and this Lee die is a prime example of such optimization.

Integrating the Lee 90586 into Your Reloading Setup

The versatility of the Lee Powder Through Expanding Die (90586) means it can be integrated into various reloading press configurations.

Compatibility with Lee Powder Measures

The most common and efficient way to utilize this die is in conjunction with Lee Precision's popular powder measures:

• Lee Auto-Disk Powder Measure: A widely acclaimed and cost-effective option, known for its consistency and ease of use. The disks provide fixed volumetric charges for various powders.
• Lee Pro Auto-Disk Powder Measure: An upgraded version offering enhanced features like a larger hopper and improved sealing, maintaining the consistency that reloaders rely on.

These powder measures attach directly to the top of the die, creating a seamless system where powder drops through the hollow expander as the case is raised into the die. This integration is designed for maximum efficiency, making it ideal for progressive and turret presses where speed is key.

Use with Powder Funnel Adapters

For reloaders who prefer to weigh each powder charge individually or use a different type of powder measure (e.g., a trickler or beam scale), the die can also be used with a compatible powder funnel adapter. This allows you to manually pour powder into the case through the die after expansion. While this method is slower than automated powder measures, it still offers the benefit of single-station expansion and consistent bullet seating preparation.

Ideal Press Types

The Lee Powder Through Expanding Die thrives in setups where efficiency is valued:

• Progressive Presses: This is where the die truly shines. By combining two operations into one, it frees up a station, allowing reloaders to add other specialized dies (like a factory crimp die) or to utilize a case feeder, significantly boosting output.
• Turret Presses: Turret presses also benefit greatly. The die eliminates the need to manually move cases between separate expanding and powder drop stations, streamlining the process for batch reloading.
• Single-Stage Presses: While less about speed, using this die on a single-stage press still offers the advantage of combining two steps into one pull of the lever, simplifying the reloading sequence and maintaining consistency.

For those searching for "Lee reloading dies for .45 Colt" or "how to efficiently charge powder on a progressive press," the 90586 model consistently emerges as a highly recommended solution.

The Lee Precision Legacy: A Brand You Can Trust

Lee Precision has been a cornerstone of the reloading community for decades, renowned for its innovative designs, commitment to affordability, and dedication to helping handloaders produce high-quality ammunition. When you choose a Lee Precision product like the 90586 Powder Through Expanding Die, you are investing in:

• Innovation: Lee is known for pioneering user-friendly designs that simplify complex reloading tasks.
• Value: Lee products consistently offer exceptional performance and durability at an accessible price point, making reloading achievable for more enthusiasts.
• Reliability: Engineered and manufactured to high standards, Lee dies are built to last, providing consistent results reload after reload.
• Community Trust: Decades of positive user experiences have solidified Lee Precision's reputation as a go-to brand for both novice and expert reloaders.

This die, like many other Lee products, reflects the brand's philosophy of smart design that empowers reloaders to achieve superior results with greater ease. When considering where to purchase reliable reloading equipment, DEGuns.com is a trusted source for Lee Precision products, ensuring you receive genuine, high-quality tools for your reloading bench.

Tips for Maximizing Performance with Your Lee 90586 Die

To get the most out of your Lee Powder Through Expanding Die for .45 Colt, consider these practical tips:

• Proper Setup: Follow the instructions for setting the die height carefully. Incorrect depth can lead to insufficient or excessive case mouth flare.
• Powder Measure Calibration: Always calibrate your Auto-Disk or Pro Auto-Disk powder measure for each new powder type to ensure accurate and consistent charges. Verify charges with a sensitive powder scale.
• Case Lube (Optional but Recommended): While pistol cases often require less lube than rifle cases, a light application of case lube can make the expanding process smoother, reduce wear on the die and brass, and prevent stuck cases.
• Cleanliness is Key: Regularly clean your die and powder measure to prevent powder residue buildup, which can affect consistency and lead to malfunctions.
• Inspect Your Brass: Before reloading, inspect all .45 Colt brass for cracks, dents, or other damage. Uniform brass contributes to consistent results.
• Safety First: Always consult your reloading manual for proper charge weights and adhere strictly to all reloading safety guidelines. Never exceed maximum recommended loads.

By following these guidelines, you can ensure that your Lee Powder Through Expanding Die operates at peak efficiency, helping you produce safe, accurate, and consistent .45 Colt ammunition.

Frequently Asked Questions About Expanding and Powder Charging Dies

Is this die suitable for both jacketed and lead bullets?

Yes, the Lee Powder Through Expanding Die for .45 Colt is suitable for both jacketed and cast lead bullets. Proper case mouth expansion is crucial for both types to prevent damage during bullet seating. For lead bullets, a slightly greater flare might be preferred to avoid shaving lead.

Can I use this die on a single-stage press?

Absolutely. While often associated with progressive presses due to its efficiency, this die functions perfectly on a single-stage press. It consolidates the case expansion and powder charging into one step, simplifying the process compared to using separate dies for each function.

How do I know if the case mouth is expanded enough?

The goal is to expand the case mouth just enough to allow the bullet to seat smoothly without deforming. You should be able to hand-start the bullet into the case without forcing it. Excessive flare should be avoided as it can shorten brass life and make crimping more difficult. Adjust the die incrementally until you achieve the desired flare.

Does this die apply a crimp?

No, the Lee Powder Through Expanding Die does not apply a crimp. Its sole functions are case mouth expansion and powder charging. A separate crimp die (like a Lee Factory Crimp Die) is needed as a final step to secure the bullet and remove the case mouth flare.

What if I don't use Lee powder measures?

If you don't use a Lee Auto-Disk or Pro Auto-Disk powder measure, you can still use this die by employing a compatible powder funnel adapter. This adapter allows you to manually pour powder into the case through the die after expansion. This method is slower but still utilizes the die's primary function of expanding the case mouth.

How often should I clean this die?

Cleaning frequency depends on your reloading volume and the type of powder used. A good practice is to clean the die periodically, perhaps every few thousand rounds or whenever you notice any resistance or inconsistent operation. A soft brush and a solvent (like isopropyl alcohol) can remove powder residue effectively.

Final Thoughts on Optimizing Your .45 Colt Reloading

The pursuit of reloading excellence is an ongoing journey, and tools like the Lee Powder Through Expanding Pistol Die for .45 Colt (90586) represent significant advancements in that journey. By intelligently combining two essential steps – case mouth expansion and powder charging – this die streamlines your process, enhances consistency, and ultimately helps you produce higher quality ammunition more efficiently. Whether you're aiming for precision target loads or reliable plinking ammunition, investing in components that simplify and improve your workflow is always a smart decision. For availability of this die and other essential reloading supplies, consider DEGuns.com, a trusted retailer for all your handloading needs.

Product Specifications: Lee Powder Through Expanding Pistol Die

Feature	Detail
Brand	Lee Precision
Model	Powder Through Expanding Die
Caliber	.45 Colt (Long Colt)
Material	Steel
Quantity	1 Die per Set
UPC	734307905866
MPN	90586
SKU	40873