Unlock Unrivaled Precision with the Lee 90702 Collet 2-Die Set for 220 Swift

For serious shooters and discerning reloaders who demand the absolute pinnacle of accuracy and consistency from their 220 Swift rifle ammunition, the Lee 90702 Collet 2-Die Set stands as an indispensable tool. This expertly engineered die set, available at DEGuns, is designed not just to reload your cartridges, but to transform them into highly consistent, precision-grade ammunition capable of delivering exceptional performance downrange. If you’re a competitive shooter, a long-range enthusiast, or a hunter who relies on pinpoint accuracy, understanding how this specific die set addresses common reloading challenges is crucial.

Why Precision Reloading Matters for the 220 Swift Cartridge

The 220 Swift is a legendary cartridge, renowned for its blazing velocity and remarkably flat trajectory. Introduced in the 1930s, it quickly became a favorite among varmint hunters and target shooters seeking extreme performance. However, to truly harness the Swift's potential, especially at extended ranges, the quality and consistency of your ammunition are paramount. Factory ammunition, while convenient, often falls short of the exacting standards required for sub-minute-of-angle (MOA) accuracy or long-range engagements.

This is where handloading, or reloading your own ammunition, becomes essential. By carefully controlling each component and process, reloaders can:

• Tailor Loads: Optimize bullet weight, powder type, and charge for their specific rifle's characteristics.
• Achieve Superior Accuracy: Produce cartridges with minimal variations, leading to tighter groups.
• Save Money: Significantly reduce the cost per round compared to buying factory ammunition.
• Extend Brass Life: Implement techniques that minimize wear and tear on valuable cartridge cases.

The challenges with high-velocity cartridges like the 220 Swift often involve maintaining case integrity, especially around the neck, and ensuring bullet concentricity for consistent flight. This is precisely where the Lee 90702 Collet 2-Die Set excels, offering a solution that addresses these critical aspects directly.

The Heart of Precision: Understanding the Lee Collet Die

At the core of this two-die set is the revolutionary Lee Collet Die. Unlike traditional full-length sizing dies that resize the entire case body and neck, or even standard neck sizing dies that still use an expander ball, the Lee Collet Die operates on a fundamentally different principle: neck sizing by collet pressure.

How the Lee Collet Die Works

When a fired cartridge case is inserted into the Collet Die, a precision-machined collet (a segmented sleeve) surrounds the case neck. As the reloading press ram is raised, the collet is forced against a tapered cone within the die. This action causes the collet to constrict, uniformly squeezing the case neck around a precisely ground steel mandrel that extends into the case mouth. The mandrel ensures the internal diameter of the neck is perfectly sized, creating consistent neck tension, which is vital for bullet grip and release.

Key Benefits of Collet Neck Sizing for 220 Swift Reloaders

1. Minimal Case Runout: This is perhaps the most significant advantage. By sizing the neck uniformly around a mandrel, the Lee Collet Die virtually eliminates bullet runout – the wobble or eccentricity of the bullet relative to the case axis. Reduced runout translates directly to improved accuracy, as the bullet enters the rifle's forcing cone and rifling more consistently. This is a critical factor for achieving those tight groups that 220 Swift shooters aspire to.
2. Extended Case Life: Because only the case neck is sized, the case body is left in its fire-formed condition. This means the brass is not subjected to the stretching and compression that occurs with full-length resizing. This minimal working of the brass significantly extends the life of your valuable 220 Swift cases, allowing for many more reloading cycles before fatigue sets in. This is a major cost-saving benefit for high-volume shooters.
3. Consistent Neck Tension: The mandrel ensures that every case neck is sized to the exact same internal diameter, providing uniform bullet tension. Consistent neck tension is paramount for consistent bullet release, which is a major contributor to low standard deviations (SD) and extreme spreads (ES) in velocity, leading to more predictable external ballistics.
4. Reduced Lubrication Needs: Unlike full-length sizing, which requires careful application of case lube to prevent stuck cases, collet sizing typically requires no lubrication on the case body and only minimal or no lube on the neck, simplifying the reloading process and reducing cleanup.
5. Ideal for Bolt-Action Rifles: Collet dies are best suited for ammunition fired in the same rifle, as the case body retains its fire-formed shape specific to that rifle's chamber. This makes the Lee 90702 Collet 2-Die Set an ideal choice for the vast majority of 220 Swift rifles, which are typically bolt-action firearms used for precision applications.

Ensuring Perfect Seating: The Dead Length Bullet Seater Die

The second crucial component of the Lee 90702 Collet 2-Die Set is the Dead Length Bullet Seater Die. This die is specifically engineered to ensure consistent bullet seating depth, independent of variations in case length.

How the Dead Length Seater Works

In a "dead length" design, the bullet is seated into the case by direct contact with the seating stem, pushing the bullet fully into the case mouth. The overall cartridge length (OAL) is determined by the fixed position of the seating stem relative to the shell holder, eliminating the influence of variations in case length. This differs from other seating dies where case length can affect seating depth if the case mouth shoulders against a crimping ring.

Benefits of the Dead Length Seater

1. Unwavering Seating Depth Consistency: This is the primary benefit. By eliminating the variable of case length, the Dead Length Seater ensures that every bullet is seated to precisely the same depth, contributing significantly to uniform chamber pressure, consistent muzzle velocity, and ultimately, superior accuracy. For a high-performance cartridge like the 220 Swift, even minute variations in seating depth can impact ballistic performance.
2. Enhanced Concentricity: The design of the Dead Length Seater, combined with the precise neck sizing from the Collet Die, helps maintain the concentricity of the bullet as it's seated. A straight, perfectly aligned bullet is fundamental for stable flight and optimal accuracy.
3. No Crimp, or Adjustable Crimp: Many precision reloaders prefer to avoid a crimp for rifle ammunition to maximize accuracy. The Dead Length Seater allows for no crimp, or if a slight crimp is desired for specific applications, Lee also offers separate Factory Crimp Dies.

What's Included in Your Lee 90702 Collet 2-Die Set?

Beyond the two primary dies, the Lee 90702 Collet 2-Die Set is a complete solution, providing essential accessories to get you started on your precision reloading journey for the 220 Swift.

• Lee Collet Sizing Die: The cornerstone for achieving minimal runout and extended brass life.
• Lee Dead Length Bullet Seater Die: For consistent bullet seating depth and improved accuracy.
• Universal Shell Holder: A robust and reliable shell holder compatible with your reloading press for holding the 220 Swift cases securely during sizing and seating operations.
• Powder Dipper: A convenient tool for quickly dispensing approximate powder charges, particularly useful for initial load development or when precise weighing isn't critical. While most precision reloaders will use a scale for final charges, the dipper serves as a good starting point.
• Comprehensive Instructions and Load Data: Lee Precision is known for providing clear, concise instructions along with valuable starting load data. This empowers both novice and experienced reloaders to safely and effectively begin crafting their 220 Swift ammunition. The included data offers a reliable foundation for developing your custom loads.

Who Will Benefit Most from This Lee Die Set?

The Lee 90702 Collet 2-Die Set is an exceptional investment for several types of shooters and reloaders:

• Precision Rifle Shooters: If your goal is to achieve the smallest possible groups from your 220 Swift rifle, whether for benchrest shooting, F-Class competition, or simply personal satisfaction, the runout reduction and seating consistency offered by this set are invaluable.
• Long-Range Enthusiasts: At extended distances, even minor inconsistencies in ammunition become magnified. This die set helps minimize those variables, leading to more predictable trajectories and hits.
• Varmint Hunters: For hunters pursuing prairie dogs, groundhogs, or other small game at considerable ranges, the ability to place shots with extreme precision is critical, and the 220 Swift excels in this role when fed top-tier handloads.
• Cost-Conscious Reloaders: While initial setup costs exist, the ability to significantly extend the life of your expensive 220 Swift brass translates to substantial long-term savings.
• Those Seeking Ease of Use: Despite its precision capabilities, the Lee Collet Die is remarkably simple to set up and operate, making it accessible even for reloaders new to advanced techniques.

Why Choose Lee Precision Dies?

Lee Precision has earned a reputation for innovation, quality, and affordability within the reloading community. Their commitment to designing tools that make precision reloading accessible to a wider audience is evident in products like the Collet Die set. When you choose Lee, you're investing in:

• Innovative Engineering: Lee's designs, like the Collet Die, often offer unique solutions to common reloading challenges.
• Durable Construction: Built to last, Lee dies are known for their robust materials and reliable performance over countless reloading cycles.
• Exceptional Value: Lee consistently delivers high-performance tools at competitive price points, ensuring that achieving top-tier accuracy doesn't have to break the bank.
• Commitment to Reloaders: With clear instructions and readily available support, Lee empowers reloaders of all experience levels.

Optimizing Your 220 Swift Reloads for Peak Performance

Beyond selecting the right die set, here are some considerations to maximize your 220 Swift's accuracy:

• Quality Components: Start with high-quality brass (like Winchester or Lapua), consistent primers, and accurate bullets suitable for the 220 Swift (e.g., 50-60 grain varmint or target bullets).
• Powder Selection: Choose powders known for their consistency and optimal burn rates in the 220 Swift, such as IMR 4064, Varget, H380, or similar medium-fast rifle powders.
• Consistent Powder Charges: Use a precise powder measure and a reliable scale to ensure every charge is identical.
• Clean Brass: Ensure your brass is clean and free of carbon buildup before sizing.
• Seating Depth (COAL) Optimization: Experiment with different seating depths (Cartridge Overall Length) in your specific rifle to find what shoots best. Even small adjustments can yield significant improvements.
• Neck Tension Consistency: The Lee Collet Die is your primary tool for this, but also ensure your brass has consistent neck wall thickness.

Find Your Precision at DEGuns

The Lee 90702 Collet 2-Die Set for 220 Swift (UPC: 734307907020) is an essential acquisition for any reloader serious about maximizing the accuracy and longevity of their 220 Swift ammunition. By choosing this set, you are investing in a proven system designed to produce concentric, consistently loaded cartridges that will unlock your rifle's true potential. Discover the difference precision reloading can make and acquire your Lee Precision products directly from DEGuns, your trusted source for reloading equipment and firearms.

Whether you're asking "What are the best dies for 220 Swift precision reloading?" or "How can I reduce bullet runout in my handloads?" or "Does neck sizing extend brass life for rifle cartridges?", the answer often points directly to the advanced capabilities of the Lee Collet Die set. Its unique design directly addresses these common inquiries and challenges faced by precision reloaders.

Product Specifications

Feature	Detail
Brand	Lee Precision
Series	2-Die Set
Model	Collet
Caliber	220 Swift
Gun Type	Rifle
Dies In Set	2
Weight	1.08 lbs
SKU	40665
UPC	734307907020
MPN	90702