A Look Back: Origins and Developments
Origins of the 9mm Parabellum
The story of these cartridges begins with different chapters, each offering insights into their intended roles.
The Development of the 5.7x28mm
Turning our attention to the 5.7 x 28mm, we see a different story. This round was developed much more recently, by the Belgian firearms manufacturer FN Herstal. The objective was to create a new cartridge that would provide improved ballistic performance and enhance the lethality of personal defense weapons, and in some cases, potentially penetrate body armor. The initial development started in the late 1980s, with the primary aim of creating a round that could penetrate body armor while retaining a relatively low level of recoil. The intent was to offer a viable alternative to the 9mm that could provide a greater effective range. Its creators sought to design a cartridge that could effectively fill a specific role in modern warfare and law enforcement, aiming for a higher level of performance than the traditional handgun rounds. This resulted in the birth of the 5.7x28mm cartridge. The creation was further defined by its use in the FN P90 personal defense weapon and the Five-seveN pistol. These firearms allowed the 5.7x28mm to make a presence in the world.
Ballistics: Understanding the Performance
9mm Ballistics
Understanding the ballistics is key to evaluating these rounds.
5.7x28mm Ballistics
The 5.7x28mm brings a different set of characteristics to the table. It typically uses lighter bullets. Common bullet weights include bullets ranging from 30 to 40 grains, which is a substantial contrast to the 9mm options. The velocities of the 5.7 are significantly higher than that of the 9mm, often exceeding 2000 fps when fired from handguns and even higher from the P90. This high velocity translates to a flatter trajectory, which is extremely advantageous for longer-range shooting. The kinetic energy at the muzzle, despite the lighter projectiles, can range from approximately 300 to 400 foot-pounds, depending on the specific load. The effective range for the 5.7 x 28mm can extend beyond that of the 9mm, reaching 100 yards or even further. The nature of the bullet may provide an advantage when it comes to armor penetration, but that is often a matter of great debate. The 5.7 aims to deliver impressive terminal ballistics through its high-speed design. It does so. It’s effective and a good choice in the right situation.
The Allure of the Nine
Availability
The 9mm’s continued presence in the market and its long-standing acceptance is due to these advantages.
Cost
The cost of 9mm ammunition is another benefit. Generally, the 9mm is less expensive than the 5.7. This lower price point makes it easier for shooters to practice regularly and stay proficient. It is important.
Reliability
The reliability of the 9mm is another key factor. With such a long history, the ammunition is thoroughly tested, and the technology is developed to the point of maximum effectiveness. Modern production methods have yielded the reliability that shooters appreciate.
Firearm Selection
Firearms, too, enjoy a robust market. The sheer number of firearms chambered in 9mm is staggering. This variety provides options for every type of shooter. From compact concealed carry pistols to full-sized service weapons and pistol-caliber carbines, there is a 9mm firearm for almost every purpose.
The Case for the Five-Seven
High Velocity
While the 9mm maintains a firm grip on the market, the 5.7 x 28mm brings forth unique advantages.
Low Recoil
The reduced recoil of the 5.7 is another benefit that many shooters value. Less recoil allows for quicker follow-up shots. The shooter maintains more control over the firearm. This is crucial in self-defense scenarios, as it enables faster and more accurate shot placement.
Magazine Capacity
The magazine capacity of firearms chambered in the 5.7 is often higher than what is found with 9mm handguns of a similar size. This feature means more rounds on hand. More rounds on hand provides an advantage when it comes to any kind of self-defense scenario.
Potential for Penetration
The 5.7 is also noted for its greater penetration capabilities, often outperforming 9mm in this regard. When this is combined with its light recoil and high speed, the 5.7 becomes a desirable round to consider.
Potential Drawbacks and Considerations
9mm Drawbacks
While there are benefits to both rounds, they both also have drawbacks.
5.7 Drawbacks
There are also debates about the stopping power of the 5.7, especially due to its lighter bullet weight. The high velocity can also cause issues when the round over-penetrates its target.
Applications and Scenarios
Self-Defense
How do these rounds perform in real-world situations? Let’s take a look.
Law Enforcement and Military
For law enforcement and military applications, the 9mm has a long history of service. The 5.7 offers advantages in terms of armor penetration and range, but is not a standard-issue round.
Target Shooting
For target shooting, the 9mm is a great choice. Recoil is manageable, and the ammunition is cost-effective. The 5.7 is also a good choice for range shooting, with its flat trajectory.
Firearm Choices
9mm Firearms
The firearms you choose will influence your decision.
5.7 Firearms
There are fewer firearms chambered in 5.7. The FN Five-seveN and Ruger-57 are two of the most popular choices. Consider the feel of the gun.
Practical Guidance for Making a Decision
Cost Comparison and Availability
When deciding between the two, the cost of the ammunition should be a significant factor. The 9mm is often more cost-effective than the 5.7. When choosing, be certain to shop around to find the best prices.
Training
Training is a must. Regardless of the ammo, you’ll want to seek professional training and practice regularly.
A Final Verdict
The choice between the 9mm and the 5.7 x 28mm is complex, depending on individual needs. Both rounds have strengths and weaknesses.
The 9mm is a proven and cost-effective option. It is ideal for those who prioritize reliability, widespread availability, and lower ammunition costs. The 5.7 x 28mm offers advantages in velocity, reduced recoil, and potentially increased penetration capabilities. It can be the right choice for those who want longer ranges, lower recoil, and are less concerned with ammunition costs.
Remember, the best ammunition is the one that you are most comfortable with. Consider your budget and shooting habits.
