Introduction
The 270 Winchester Short Magnum (WSM) cartridge has earned a solid reputation among hunters and shooters. Its flat trajectory, impressive energy transfer, and relatively manageable recoil make it a favorite for long-range shooting and big game hunting. A critical part of maximizing the potential of the 270 WSM lies in the accuracy and consistency of your ammunition. While factory ammunition can perform well, handloading offers shooters the opportunity to tailor their rounds to their specific rifle and shooting needs, yielding significant improvements in accuracy. The cornerstone of accurate handloading is, undoubtedly, the die set. Understanding the nuances of a 270 WSM die set, and selecting the one that aligns with your individual requirements, can dramatically enhance your reloading experience and your shooting results.
The process of reloading, or handloading, involves taking spent brass casings, preparing them, charging them with propellant, seating a new bullet, and ensuring that the overall dimensions are within acceptable standards. This process requires precision tools and a meticulous approach. The 270 WSM die set is one of the most important tools involved, responsible for shaping and sizing the brass, and precisely seating the bullet. A well-chosen die set will enable the reloader to achieve consistent dimensions and performance, and potentially, sub-minute-of-angle accuracy.
Understanding 270 WSM Die Sets
A die set typically contains several essential components, each performing a specific function in the reloading process. While configurations can vary slightly between manufacturers, understanding the role of each die is crucial for successful reloading.
The first, and often most used die is the full-length resizing die. This die’s primary function is to resize the fired case to its original factory dimensions. Firing a round causes the brass to expand, both in length and diameter, as it conforms to the chamber of the rifle. Resizing the case allows it to be chambered smoothly in the rifle again. Furthermore, the full-length resizing die will often contain a decapping pin that knocks out the spent primer from the case.
The neck sizing die, in contrast to the full-length die, is designed to resize only the neck of the case, leaving the body mostly untouched. Neck sizing is often favored by shooters who are focused on exceptional accuracy and who are only shooting the same rifle each time. Because the case body is not resized, this allows the brass to maintain a snug fit to the chamber of the rifle. Some shooters find that this enhances accuracy, and often extends the life of the brass because it is stressed less during the resizing process.
The seating die’s function is, as the name suggests, to seat the bullet into the case. This die carefully controls the depth to which the bullet is inserted, which is a critical factor in achieving consistent accuracy. The seating die typically features an adjustable stem that can be fine-tuned to seat the bullet at the desired overall cartridge length (OAL). The proper seating depth helps maintain the proper distance of the bullet from the lands of the rifle barrel. The seating die often also applies the correct pressure at the mouth of the case, which is called the crimp.
Some die sets include a crimp die as an optional component. The crimp die applies a controlled amount of pressure to the case mouth, helping to secure the bullet and improve consistency in the bullet’s release from the case. The crimp die, like all the others, is also adjustable, and should be adjusted according to the bullet the reloader is using.
The quality of the die set is critical to its performance. Investing in a die set from a reputable manufacturer can prevent a lot of problems. High-quality dies are typically made from hardened steel or carbide, ensuring longevity and precision. Cheaper dies might not be manufactured to the same tolerances, potentially leading to inconsistent results, or even damaging your brass. They may also be less durable and wear out more quickly. The materials used in the construction, the precision of the manufacturing process, and the overall design all contribute to the quality of the set.
Key Features to Consider When Choosing a 270 WSM Die Set
Choosing a 270 WSM die set requires carefully considering its features. Brand reputation and the quality of the materials used play an important role in the reliability of the die set. Some die sets incorporate high-end features, such as the ability to fine-tune the bullet seating depth.
Different brands cater to various budgets and preferences. Redding, RCBS, and Hornady are well-established and respected brands that offer a wide range of 270 WSM die sets. These brands are known for their quality, precision, and durability. Lee is another popular manufacturer that offers entry-level, yet effective, die sets. Each brand has its own strengths and weaknesses, and the best choice often depends on your individual needs and experience.
The die material can impact performance and longevity. Steel dies are typically more affordable, but they require more frequent lubrication. Carbide dies, on the other hand, are more expensive, but offer the benefit of being extremely hard-wearing and requiring less lubrication. Carbide dies also often result in less friction, which translates to less stress on the brass during resizing.
If you are choosing to resize the whole case, it is also important to select the correct configuration for your specific needs.
Full-length sizing is a good choice for the beginning reloader, as it ensures that the case is fully resized and will fit any 270 WSM rifle chamber. Neck sizing is often preferred by those who only shoot from the same rifle and who want to extend brass life and improve accuracy.
Careful consideration should also be given to the seating die features. Micrometer adjustments on the seating die allow for precise adjustments to bullet seating depth. This level of control is invaluable for fine-tuning your loads and finding the sweet spot for your particular bullet and rifle combination. Features like bullet alignment systems can improve accuracy by ensuring that the bullet is seated perfectly straight in the case.
The accessories that come with your die set should also be assessed. For example, the shell holder is essential, as it holds the case during the reloading process. Make sure that the die set comes with a shell holder that is compatible with your reloading press and the 270 WSM cartridge.
Types of 270 WSM Die Sets and Their Uses
There are various configurations of die sets designed for the 270 WSM cartridge. Each configuration has its specific uses and caters to different reloading goals.
Full-length resizing and seating die sets are a great choice for most reloaders. This type of set is versatile and easy to use, offering a good balance of performance and convenience. These sets come with full-length resizing dies for preparing the brass and seating dies for inserting the bullets.
Neck sizing and seating die sets are favored by experienced reloaders who prioritize extreme accuracy. Neck sizing minimizes brass work-hardening and often extends the life of the brass. If you’re only using the same rifle, neck sizing can potentially increase accuracy.
Competition die sets incorporate features designed to maximize precision and consistency. They may include features like bushing dies, which allow for fine-tuning of the neck tension.
There are other specialized die sets available, such as those designed for specific bullet types. These specialty sets are designed to work seamlessly with specific types of bullets.
How to Properly Use a 270 WSM Die Set
Properly using a 270 WSM die set is essential for ensuring both safety and accuracy. Every die set comes with instructions, and these should be read carefully.
Carefully adjust the dies according to the manufacturer’s instructions. Make sure to use appropriate amounts of case lubricant if you are using steel dies. Ensure that you set up the dies correctly, and then test them before you move on to reloading large quantities of ammunition.
Be sure to always be cautious when handloading. Safety glasses and gloves should be worn during the reloading process. Make sure to clean up any spilled powder immediately.
Maintaining and Cleaning Your 270 WSM Die Set
To keep your die set in good working condition, maintain it regularly.
Cleaning the dies is necessary to remove any residue, brass shavings, or lubricant buildup. Using a specialized die cleaner and a soft cloth can help remove any contaminants.
Proper lubrication is essential, especially when using steel dies. Lubricating the dies can help extend the life of the dies. When using the die set, make sure to follow the manufacturer’s instructions.
Proper storage is also critical, as you will want to avoid corrosion. Store the dies in a clean, dry place, ideally in their original box or a dedicated die storage case.
Recommendations and Conclusion
Choosing the right 270 WSM die set can seem daunting, but by considering your specific needs and preferences, you can make the best decision. If you are a beginner, a full-length resizing and seating die set might be the best option. As you become more experienced, you might want to experiment with different die set types. Ultimately, the goal is to find a die set that helps you achieve consistent, accurate results.
Remember to research different die set brands and models. Read reviews and talk to experienced reloaders. Be patient, and don’t be afraid to experiment to find the best solution for your needs.
Handloading can be a rewarding hobby. It allows you to tailor your ammunition to your specific rifle and shooting needs. Once you have the right 270 WSM die set, you will be on your way to producing high-quality ammunition.
