Introduction
The 7mm caliber holds a special place in the hearts of hunters and long-range shooting enthusiasts. Its ability to balance trajectory, energy transfer, and recoil makes it a versatile choice for various applications. Within the realm of seven-millimeter cartridges, two names often arise in discussions about performance and effectiveness: the venerable 7mm Remington Magnum and the high-performance 7mm Shooting Times Westerner. This article will delve into a comprehensive comparison of these two 7mm magnum powerhouses, exploring their strengths, weaknesses, and suitability for different shooting scenarios. Deciding between the 7mm Rem Mag and the 7mm STW can be a significant decision for any shooter, and this detailed analysis will help guide you towards the best option for your needs.
Historical Background
The 7mm Rem Mag holds a long and distinguished history, proving its worth in the shooting community. It first appeared on the scene decades ago, quickly gaining popularity among hunters seeking an efficient cartridge. Its balanced characteristics made it a favorite for taking down medium-sized game animals at distances considered challenging for other cartridges. The 7mm Rem Mag offered a significant step up in power compared to older 7mm cartridges, delivering flatter trajectories and more energy on target. Its early success helped solidify its position as a foundational 7mm cartridge, available widely across the globe.
The 7mm STW, in contrast, represents a newer generation of high-performance cartridges, conceived by the celebrated gunsmith, Layne Simpson. Its creation was fueled by a desire for more power and increased range, specifically aiming at pushing the boundaries of seven-millimeter performance. The 7mm STW was built to capitalize on the efficiency and ballistic advantages that seven-millimeter bullets could provide, but at a much higher velocity than the other options. This higher velocity translates into flatter trajectories, making it easier to hit targets at longer ranges.
Cartridge Specifications and Ballistics
7mm Remington Magnum
Taking a look at the 7mm Remington Magnum’s case, we find a design based on the .375 H&H Magnum case, but necked down to accommodate a .284-inch (7mm) diameter bullet. This case offers a good balance between powder capacity and manageable recoil, making it a user-friendly option for a wide range of shooters. Typically, the 7mm Rem Mag is used with bullet weights ranging from 140 to 175 grains, although some lighter and heavier options exist.
These varying bullet weights offer a good amount of flexibility, allowing for the selection of loads optimized for hunting different game animals. The ballistic coefficients (BCs) of these bullets vary, depending on the specific bullet construction, but generally, they offer decent wind resistance and maintain energy effectively at medium ranges. The velocity of the 7mm Rem Mag can vary depending on the specific load, barrel length, and environmental conditions, but shooters will generally see velocities from 2,900 to 3,200 feet per second (fps) with commonly used bullet weights. At the muzzle, the 7mm Rem Mag can provide roughly 2,800 to 3,200 ft-lbs of energy, depending on the load. This energy translates into significant downrange power.
7mm Shooting Times Westerner
On the other hand, the 7mm STW boasts a more substantial case. Developed from the .8mm Remington Ultra Magnum case, the 7mm STW provides an extremely large case capacity. This increased capacity is the key to its high-velocity capabilities. It is also chambered to accommodate the standard .284 diameter bullets.
The 7mm STW is typically loaded with bullets in the 140 to 175-grain range, similar to the 7mm Rem Mag. However, the significantly larger case capacity allows it to drive these bullets at significantly higher velocities. These higher velocities also depend on the bullet construction and powder being used, but most shooters will see velocities ranging from 3,100 to 3,400 fps or even faster. With these numbers, the 7mm STW can generate muzzle energy of approximately 3,500 to 4,000 ft-lbs.
Direct Comparison
Comparing the two, the most obvious difference is the powder capacity. The 7mm STW’s significantly larger case is the critical factor in delivering higher velocities. The higher velocities directly translate into flatter trajectories and more energy downrange. The 7mm STW will consistently exhibit better downrange performance at longer distances. At 500 yards, for example, the 7mm STW will generally be traveling faster and carrying more energy than the 7mm Rem Mag. At extended ranges, the difference in drop becomes even more apparent. These factors ultimately make the 7mm STW a better choice at extended ranges.
Performance and Capabilities
7mm Remington Magnum
The 7mm Remington Magnum’s effective hunting range is determined by bullet performance, energy at the target, and the shooter’s skill. It excels in taking down medium-sized game such as deer, antelope, and elk at ranges within 400 yards. Its more moderate recoil makes it easier to handle and allows for faster follow-up shots. The widespread availability of factory ammunition and reloading components make the 7mm Rem Mag a versatile and practical choice for many hunters.
7mm Shooting Times Westerner
The 7mm STW, on the other hand, truly shines in those extended-range situations. With higher velocities, it offers increased reach for hunting larger game at longer ranges. The flatter trajectory makes it a great option for hunting mule deer, elk, and even larger game, such as moose and bears, at distances of 500 yards or more. The extra energy delivered at these distances can ensure effective terminal performance. It also proves to be a capable target shooting round because of the flat trajectory.
Comparison and Application
In many cases, the 7mm STW is best suited for dedicated long-range hunters who want to maximize their reach and energy on target.
Recoil and Practicality
Recoil Comparison
Regarding recoil, the 7mm Rem Mag is generally regarded as having moderate recoil, making it relatively comfortable for extended shooting sessions. Estimates range based on rifle weight, with the typical recoil energy being somewhere between 18-25 ft-lbs. Ammunition is easily accessible and more cost-effective. The recoil is manageable for most shooters, allowing for faster follow-up shots and enjoyable practice.
The 7mm STW, due to its larger case and higher velocities, generates significantly more recoil, typically between 25 and 40 ft-lbs or more depending on the rifle’s weight. This greater recoil can be more fatiguing and could lead to flinching for inexperienced shooters. The increased recoil is a major factor for many people choosing between the 7mm Rem Mag and the 7mm STW.
Ammunition Availability and Cost
Ammunition availability of the 7mm Rem Mag is extremely common. Both factory loads and reloading components are readily accessible and at a lower cost than the 7mm STW. The widespread popularity of the 7mm Rem Mag makes it a convenient and affordable option.
Factory ammunition for the 7mm STW is available, but it is generally less common and often more expensive than that of the 7mm Rem Mag. Reloading is often the preferred option to tailor loads to specific needs and to reduce costs.
Barrel Life
Barrel life, the number of rounds a barrel can fire before accuracy degrades, is an important consideration. The 7mm Rem Mag, being a more moderate-pressure round, typically offers longer barrel life compared to the 7mm STW.
The 7mm STW is known for producing significant heat and erosion to the barrel due to its high-velocity loads. Barrel life is generally shorter for the 7mm STW than the 7mm Rem Mag, which can be a substantial factor for shooters who put a high volume of rounds through their rifles.
Rifles and Customization
Rifle Options
The 7mm Rem Mag is available in a wide range of rifle platforms from numerous manufacturers. Bolt-action rifles are the most common option. Various stock designs, from traditional walnut to advanced composite materials, are available, allowing shooters to select a rifle that fits their preferences.
The 7mm STW, due to its more specialized nature, has fewer rifle options than the 7mm Rem Mag. However, several manufacturers produce quality bolt-action rifles chambered for the 7mm STW.
Customization and Handloading
Handloading provides many benefits for both cartridges. It allows shooters to tailor loads to their specific needs, fine-tuning accuracy and maximizing performance. Handloading can also reduce the cost of ammunition over the long term, particularly for the 7mm STW, which can be loaded more economically through reloading than buying pre-made ammunition.
Pros and Cons Summary
7mm Rem Mag
The advantages of the 7mm Rem Mag include widespread ammunition availability, the moderate recoil, proven performance on various game animals, and a good balance between power and practicality. It’s a versatile choice for many shooters. However, it may be outperformed in the realm of extreme long range by the 7mm STW.
7mm STW
The benefits of the 7mm STW include extreme long-range performance, which can deliver greater energy on target at extended distances. Its performance is great for reaching large game. The flatter trajectory makes it easier to hit targets at long ranges. But there are costs, especially in regards to recoil, shorter barrel life, and less common ammunition, and is not always best for beginners.
Conclusion
In conclusion, selecting between the 7mm Rem Mag and the 7mm STW demands that shooters consider their individual needs and shooting goals. The 7mm Rem Mag emerges as an excellent all-around choice, offering great versatility, manageable recoil, and broad ammunition availability. It is a great choice for hunters who value the combination of power and practicality. The 7mm STW, on the other hand, stands out as the premier choice for long-range shooting enthusiasts and hunters who demand maximum performance at extended distances. The 7mm STW is perfect for shooters who are willing to trade recoil and barrel life for unmatched long-range capabilities. The decision hinges on your specific application and the trade-offs you are willing to make. Ultimately, understanding the unique strengths of each cartridge is crucial for making the right decision and optimizing your shooting experience.
References
For further in-depth information, you can research these cartridges on these trusted sources: websites dedicated to hunting, ballistics data websites, and shooting publications.
