300 PRC vs 300 RUM: Unveiling the Ultimate .300 Caliber Showdown

The world of long-range precision shooting has grown exponentially in recent years, driven by advancements in rifle technology, optics, and ballistic performance. Among the many factors to consider when choosing a cartridge for long-range shooting are accuracy, energy, trajectory, and recoil. Two popular choices among long-range shooters today are the 300 Precision Rifle Cartridge (PRC) and the 300 Remington Ultra Magnum (RUM), both of which deliver impressive performance capabilities. In this comprehensive blog post, we shall delve into the intricate details of these high-performance cartridges, comparing their specifications, strengths, weaknesses, and applications, to help you make an informed decision between these two giants of the long-range shooting world.

300 PRC: Origins and Specifications

The 300 PRC is a relatively new player in the world of long-range shooting, having been introduced to the market in 2018 by Hornady, a trusted ammunition manufacturer. This cartridge was designed with input from top-level competitive shooters and military personnel, meant to provide consistent and reliable performance in long-range precision shooting.

Specifications:

  • Parent case: .375 Ruger
  • Bullet diameter: .308 in (7.8 mm)
  • Case length: 2.580 in (65.5 mm)
  • Overall length: 3.340 in (84.8 mm)
  • Case capacity: 99.0 gr H2O (6.42 cm³)
  • Primer type: Large Rifle Magnum

As a non-belted, magnum-class cartridge, the 300 PRC allows for efficient powder burn and consistency in performance, creating a high level of accuracy and energy downrange. The inherent precision and long, heavy, high-ballistic coefficient bullets contribute to the cartridge’s impressive performance at extended ranges.

300 RUM: Origins and Specifications

The 300 Remington Ultra Magnum, also known as the 300 RUM or 300 UltraMag, was introduced in 1999 as part of Remington’s line of Ultra Magnum cartridges. It was designed as a larger and more powerful alternative to the well-established .300 Winchester Magnum, offering shooters a high-performance cartridge with exceptional energy, accuracy, and range potential.

Specifications:

  • Parent case: .404 Jeffery
  • Bullet diameter: .308 in (7.8 mm)
  • Case length: 2.850 in (72.4 mm)
  • Overall length: 3.600 in (91.4 mm)
  • Case capacity: 112.0 gr H2O (7.25 cm³)
  • Primer type: Large Rifle Magnum

The 300 RUM offers exceptional case capacity and velocity potential, thanks in part to the large, belt-less case and slight body taper. As a result, it can propel heavy .30-caliber bullets at high velocities, translating to flat trajectories and minimal wind drift at extended ranges.

Performance Comparison

When comparing the performance of these two cartridges, several aspects need to be taken into consideration, such as trajectory, energy, and accuracy.

Trajectory

One of the most important factors in long-range shooting is the cartridge’s ability to maintain a flat trajectory. A flat trajectory means that, over a given distance, the bullet will drop less, making it easier for the shooter to make accurate shots at long ranges.

While both the 300 PRC and the 300 RUM provide excellent trajectory performance, the 300 RUM has a slight advantage in velocity and thus, flatter trajectory. However, this advantage diminishes as the distance increases, and the 300 PRC’s heavy, high-BC bullets tend to maintain their energy better, providing a comparable trajectory at extreme long-range shooting distances.

Energy

The kinetic energy of a projectile is a crucial aspect of its performance, particularly when hunting and considering the terminal effects on game animals. Given its larger case capacity and higher muzzle velocities, the 300 RUM often delivers more energy than the 300 PRC, particularly at closer ranges. However, the 300 PRC’s high-BC bullets are better at retaining energy at extended ranges, narrowing the gap between the two cartridges as the range increases.

Accuracy

Both the 300 PRC and the 300 RUM are known for their accuracy potential, but several factors come into play. The 300 PRC was explicitly designed with long-range precision in mind, offering a more consistent powder burn, optimal bullet seating, and less variation between shots. The inherent accuracy of the cartridge, combined with the high-BC bullets it was designed to fire, give the 300 PRC an edge in terms of accuracy, particularly at extended ranges.

While the 300 RUM can be highly accurate, the larger cartridge can result in increased barrel wear and decreased barrel life over the long term, which may eventually impact accuracy. Additionally, the 300 RUM operates at higher pressures, which can contribute to increased barrel heating, leading to variations in shot-to-shot consistency.

Recoil

Recoil is an inevitable and often considerable factor when shooting high-performance magnum cartridges such as the 300 PRC and 300 RUM. Generally speaking, the 300 RUM tends to produce more recoil than the 300 PRC, owing to its higher muzzle velocities and larger powder charges. That said, the actual difference in felt recoil between the two cartridges will be largely dependent on factors such as the rifle’s weight, the addition of a muzzle brake, and other mitigating features.

Applications

Both the 300 PRC and the 300 RUM offer robust performance and capabilities across a range of applications. In the world of long-range rifle competition, the 300 PRC has quickly gained a reputation for accuracy and consistency, making it a top choice among many competitors. The 300 RUM, while not as prevalent in competition, can still offer exceptional performance in this context due to its excellent trajectory and energy.

In hunting applications, the 300 PRC and the 300 RUM both excel at taking down a wide variety of game animals, from medium-sized deer to large, tough species such as elk and moose. The 300 RUM generally offers more energy, making it an excellent option for larger game and longer shots, while the 300 PRC provides optimal accuracy and consistency, ensuring effective terminal performance when shots are placed correctly.

Conclusion

In summary, both the 300 Precision Rifle Cartridge and the 300 Remington Ultra Magnum have unique strengths and weaknesses, with each excelling in large, long-range hunting and precision shooting applications. Ultimately, the choice between these two high-performance cartridges will depend on your preferences and specific needs, taking into account factors such as accuracy, energy, and manageable recoil. Regardless of your choice, both cartridges are bound to deliver impressive results in the hands of skilled shooters.

Frequently Asked Questions

How does 300 PRC compare to 300 RUM?

The 300 PRC (Precision Rifle Cartridge) is a newer long-range cartridge designed for increased accuracy, while the 300 RUM (Remington Ultra Magnum) is an older and more established cartridge known for high velocities and energy. The 300 PRC generally has less recoil and a more efficient casing design, while the 300 RUM has higher muzzle energy and a larger case capacity.

What is the difference between 300 RUM and 300 WM?

The primary difference between the 300 RUM (Remington Ultra Magnum) and the 300 WM (Winchester Magnum) is the case size, which affects the amount of powder that can be used and, in turn, the overall performance of each cartridge. The 300 RUM has a larger case capacity, typically resulting in higher velocities and greater energy, while the 300 WM is a more popular and widely available cartridge with less recoil.

What does a 300 PRC compare to?

The 300 PRC (Precision Rifle Cartridge) can be compared to various other long-range cartridges, including the 300 RUM, 300 Winchester Magnum, and 6.5 Creedmoor. Its performance is designed to be very precise and high-performing at long ranges, with a focus on accuracy and consistency. It also competes with other popular long-range cartridges in the market, such as the 338 Lapua and 300 Norma Magnum.

Is 300 PRC overkill for deer?

While the 300 PRC is more than capable of taking down a deer, it may be considered overkill for this purpose due to its focus on long-range accuracy and precision. The cartridge’s design is more suited for long-range target shooting and big game hunting at extreme distances, where its precision and consistency truly shine. For deer hunting, there are more economical and less powerful cartridges out there that will work just fine, such as the 6.5 Creedmoor or 308 Winchester.

What is the effective range of the 300 PRC?

The effective range of the 300 PRC depends on various factors, including the shooter’s skill, quality of equipment, and environmental conditions. However, it’s generally considered to have an effective range of at least 1500-2000 yards for long-range target shooting and around 1000 yards for hunting purposes, provided the shooter is skilled and using appropriate equipment.

How does the 300 PRC perform compared to the 6.5 Creedmoor?

The 300 PRC and 6.5 Creedmoor are both popular long-range cartridges, but they serve different purposes. The 300 PRC offers higher velocities, additional energy, and better wind resistance due to larger and heavier bullets. The 6.5 Creedmoor, on the other hand, offers reduced recoil and better barrel life. The 300 PRC is more suited for larger game hunting and extreme long-range shooting, while the 6.5 Creedmoor is a more versatile and popular choice for both target shooting and hunting.

Can I use the 300 PRC for long-range competition shooting?

Yes, the 300 PRC is designed with long-range precision in mind, making it an excellent choice for competition shooting. Many shooters have found success with the cartridge in various types of long-range shooting competitions, thanks to its accuracy and consistency even at extreme distances.

What is the recoil for the 300 PRC compared to other popular long-range calibers?

The 300 PRC recoil is generally considered to be moderate when compared to other popular long-range calibers. It has noticeably less recoil than cartridges like the 300 RUM and 338 Lapua Magnum but slightly more than calibers such as the 6.5 Creedmoor or 308 Winchester. Shooters experienced in long-range shooting often find the recoil of the 300 PRC manageable, depending on rifle weight and recoil reduction systems used.

Is the 300 PRC a good choice for a beginner shooter?

While the 300 PRC can be an excellent caliber for individuals experienced in long-range shooting or hunting, it may be a bit overwhelming for a beginner due to its recoil and the cost of ammunition. More affordable and beginner-friendly cartridges like the 6.5 Creedmoor, 308 Winchester, or even 223 Remington may be better options for new shooters looking to get into long-range shooting or hunting.

How available is 300 PRC ammunition compared to other long-range calibers?

As the 300 PRC is still relatively new, the availability of ammunition can be limited compared to more established long-range cartridges like the 300 Winchester Magnum or 6.5 Creedmoor. However, the popularity of the 300 PRC has been increasing, and an expanding range of factory ammunition options are becoming more available from various manufacturers. Reloading components like brass, bullets, and dies are also available for those who prefer to handload their own ammunition.

Hi! I'm Brian, a born-and-raised outdoorsman with a lifelong passion for hunting. I've spent countless seasons in the field, tracking game and perfecting my craft. Over the years, I've had the privilege of hunting in some of the most beautiful and rugged landscapes this world has to offer.
I've learned a lot along the way and I'm always eager to share my experiences with others. I firmly believe in the importance of ethical hunting practices and and sustainable use of our natural resources, and I do my best to promote these principles in all of my adventures. Hunting is more than just a hobby for me, it's a way of life.
Brian Clark
Scroll to Top