Introduction
Introduction
The pursuit of accuracy and performance in the world of shooting often leads dedicated enthusiasts to the fascinating realm of reloading. This intricate process allows shooters to tailor ammunition to their specific firearms, optimizing both accuracy and effectiveness. Among the diverse range of cartridges available, the .20 Vartarg stands out as a compelling option, particularly for varmint hunting and target shooting. Its small caliber and flat trajectory make it a favorite among shooters, and this comprehensive guide offers valuable insights and reliable reloading data to assist reloaders in creating the best ammunition possible for their .20 Vartarg rifles.
Safety Disclaimer
It’s crucial to recognize that reloading is an inherently dangerous activity. This guide provides information and data to assist in the process, but always prioritize safety above all else. Always wear appropriate safety glasses during all reloading operations. Exercise extreme care in the handling of all components, including primers and powders. Never exceed the recommended maximum loads, and always begin with the lowest load and gradually increase, observing for any signs of excessive pressure. Reloading involves working with potentially explosive materials, and any deviation from safe practices can result in severe injury or even death. Use the information presented here at your own risk, and accept complete responsibility for your actions.
Understanding the Vartarg
Cartridge Specifications
The .20 Vartarg is a specialized cartridge, born from the desire for a highly efficient, small-caliber round. Understanding its characteristics is fundamental to successful reloading. The cartridge typically uses bullets with a diameter of point two zero four inches. This small diameter combined with a high velocity contributes to its flat trajectory and exceptional performance at range. The parent case is commonly a necked-down version of a .222 Remington case. The shoulder angle and overall case dimensions are designed to optimize powder efficiency and bullet performance. The overall design contributes to remarkable ballistic performance for its size.
Rifling Twist Rates
When selecting a rifle for the .20 Vartarg, paying attention to the rifling twist rate is crucial. The rifling twist rate determines the stability of the bullet in flight. A proper twist rate ensures the bullet rotates at a specific rate, stabilizing its trajectory and improving accuracy. The ideal twist rate depends on the weight and length of the bullets being used. For lighter bullets, such as those ranging from grains to around thirty-five grains, a twist rate of one in twelve inches might be suitable. As bullet weights increase, a faster twist rate, such as one in ten or even one in nine, might be needed to properly stabilize heavier bullets, such as those approaching or exceeding the grain mark. Consulting with a gunsmith or referencing manufacturer recommendations will aid in selecting the ideal twist rate for specific bullet weights.
Brass Preparation
Proper brass preparation is the foundation of consistent reloading. The condition of the brass directly influences the consistency of the shots fired. Neck sizing, or full-length sizing, is a decision each reloader must make based on the type of their rifles. Neck sizing is suitable for rifles with consistent chamber dimensions, and can extend the life of the brass. Full-length sizing is preferred for rifles where brass must be properly sized to fit the chamber. Trimming the brass to the correct length is critical for maintaining consistent chambering and preventing excessive pressure. Deburring and chamfering the case mouth prepares the brass for secure bullet seating. Cleaning the primer pocket removes any residue and ensures reliable primer ignition. Each stage plays a significant role in establishing reloading consistency.
Essential Components for the Vartarg
Primers
Primers play a pivotal role. The primer ignites the propellant powder. Recommended primers for the .20 Vartarg typically include small rifle primers. There are a range of brands offering various characteristics. Experimentation and testing may be required for the best results.
Powders
Propellant powders provide the energy that propels the bullet. A range of suitable powders are available. Recommended powders generally include those with faster burn rates, suitable for small-caliber cartridges. Proper burn rate selection is important. Powders such as Hodgdon H322, Reloader 10x, and Accurate 2015 have proven to be reliable options. Powder selection should be aligned with the weight of the bullets used. For lighter bullets, faster burning powders might yield better results. Heavier bullets might perform optimally with a slightly slower burning powder. Research the specific characteristics of each powder, accounting for temperature sensitivity, which could influence pressure and velocity.
Bullets
Bullets are the projectiles that impact the target. A variety of bullet types, weights, and brands are available. For varmint hunting, bullets designed for rapid expansion and fragmentation are generally the preferred choice. These bullets are made to disintegrate upon impact with the target. In contrast, for target shooting, bullets with a boat-tail design are frequently used. These bullets offer improved ballistic coefficients and deliver greater accuracy. Bullet weight selection is a critical consideration when reloading for the .20 Vartarg. Lighter bullets generally achieve higher velocities, but the selection of a suitable weight is also affected by the rifle’s rifling twist rate. Selecting the right bullet for the desired application is critical.
Brass
Choosing high-quality brass is an investment. New, primed, or once-fired brass is recommended for reloaders. Brass is reloaded for many cycles, and it can reduce loading consistency with each cycle. Careful inspection is needed.
Reloading Data: A Practical Guide
Data Table
Creating a data table to guide the process of reloading the .20 Vartarg is important. It gives reloaders a safe starting point. It is absolutely necessary to carefully follow the instructions and to carefully monitor the progress. This table will help the reloader.
- H322, 32 grain, Small Rifle, grains, grains, – feet per second, – inches, Start low and carefully monitor
- Reloader 10x, 32 grain, Small Rifle, grains, grains, – feet per second, – inches, Carefully check for pressure
- H322, 40 grain, Small Rifle, grains, grains, – feet per second, – inches, Start low and look for pressure signs
- Accurate 2015, 40 grain, Small Rifle, grains, grains, – feet per second, – inches, Monitor carefully.
The loads provided serve as a helpful guide. Always consult multiple sources and gradually increase the load.
Pressure Signs
It is important to understand the pressure signs associated with reloading. Reloaders must recognize the signs. Pay attention to flattening primers, ejector marks on the case head, and difficulty lifting the bolt. Use a chronograph to measure velocity. Monitor the velocity, as this will show the rate of the load. Temperature and other factors can affect the pressure and velocity.
The Reloading Process: Step by Step
Steps of Reloading
The process of reloading involves several steps. First, the brass is cleaned to remove any dirt. Next, the cases are primed. Then, the propellant powder is carefully measured and dispensed into each case. The bullets are seated to the correct overall length.
Maximizing Accuracy and Performance
Accuracy Tips
Consistent reloading practices are important. Seating depth adjustments can improve the accuracy. Experimentation with different powders and bullets can improve performance.
Safety: Reaffirming the Foundation
Importance of Safety
Reloading is inherently dangerous. Always wear safety glasses.
Conclusion: The Path to Precision
Summary
Reloading opens a path to precision. By carefully following the steps, and paying attention, the .20 Vartarg can reach its full potential.
Resources to Explore
Finding Reliable Information
Consulting reputable sources is important. The websites of bullet manufacturers, powder manufacturers, and reloading manuals offer critical information.
