Firing 380 ACP in a 9mm Handgun: What You Need to Know

In the world of firearms, the right ammunition can make or break your shooting experience. Today, we delve into the intricacies of trying to fire 380 Automatic Colt Pistol (ACP) rounds in a 9mm handgun – a topic that’s sure to spark a hearty debate among gun enthusiasts. Your choice of ammunition not only affects accuracy and recoil but also has potential safety implications. Hence, understanding the compatibility of 380 ACP and 9mm firearms is essential.

Background of 380 ACP and 9mm Handguns

Before we delve into their compatibility, it’s essential to understand what 380 ACP and 9mm handguns are.

380 ACP

The 380 ACP, also known as 9mm Short, 9mm Kurz, 9mm Browning, and 9x17mm, is a standard cartridge for blowback semi-automatic pistols. The ammo was developed by John Moses Browning and introduced for the Colt Model 1908 pocket pistol in 1908.

9mm Handguns

9mm, officially referred to as 9x19mm Parabellum or 9mm Luger, is one of the most commonly used handgun cartridges worldwide. It was introduced in 1902 by German weapons manufacturer Deutsche Waffen- und Munitionsfabriken (DWM) for their Luger semi-automatic pistol.

Differences between 380 ACP and 9mm

Despite the similar names, there are considerable differences between 380 ACP and 9mm ammunition, primarily in size, power, and pressure.

Size

Though both are called 9mm, the 380 ACP is smaller than its 9x19mm counterpart, with the former having a shorter casing. As a result, a 380 ACP has less powder and a lower velocity when fired compared to 9mm ammunition.

Power and Pressure

The 9mm ammo delivers a higher level of power and pressure than the 380 ACP. The 9mm, being larger and more powerful, has more recoil but also offers a faster and flatter trajectory, which can improve accuracy at longer ranges.

Now that we’ve established the differences between them, we can dive into the main question: Can you fire a 380 ACP round from a 9mm handgun?

Can You Fire 380 ACP in a 9mm Handgun?

Technically speaking, you can physically fit a 380 ACP cartridge into a 9mm chamber. However, doing so isn’t recommended due to multiple reasons revolving around safety, functionality, and performance.

Safety Concerns

Firing a 380 ACP round from a 9mm chamber can result in an unsafe shooting scenario. The shorter 380 ACP casing doesn’t sit properly in a 9mm chamber, which can affect the bullet’s alignment with the barrel, possibly causing an explosion or accidental discharge.

Functional Issues

Further, the 380 ACP round’s smaller size can lead to functional issues, such as weak cycling, where the slide doesn’t have enough force to come back, eject the spent case, load the next round, and go into battery. It can also lead to feeding problems, causing the weapon to jam.

Performance Drawbacks

Even if you manage to fire a 380 ACP round from a 9mm handgun, the level of performance will be subpar. The inherent differences in size, power, and pressure between these two cartridges significantly affect the bullet’s trajectory and accuracy when firing 380 ACP rounds from a 9mm pistol.

Conclusion

The practicalities and safety risks overshadow the possibility of shooting a 380 ACP in a 9mm handgun. It’s crucial to remember that firearms and ammunition designs have specific purposes and specifications. Mixing and matching can lead to dangerous consequences and compromises the gun’s functionality. Always ensure your ammo matches your firearm to promote a safe, enjoyable, and effective shooting experience.

Though it’s possible to fire a 380 ACP in a 9mm handgun, it’s not a practice that is safe or advisable due to safety concerns, functional issues, and performance drawbacks.

Ensure that you always use the correct ammunition for your handgun to prevent any potential accidents and to ensure optimal functionality and shooting performance. Remember, when it comes to firearms, safety is always the top priority.

Frequently Asked Questions

Can you fire 380 out of a 9mm revolver?

No, you cannot safely fire .380 ACP ammunition out of a 9mm revolver. 9mm revolvers are designed specifically for the dimensions of 9mm ammunition, which is longer than .380 ACP. Attempting to fire .380 ACP through a 9mm revolver can result in dangerous pressure build-up, misfires, and potential damage to the firearm.

Can you shoot 380 through a 9mm suppressor?

No, it is not recommended and generally unsafe to shoot .380 ACP ammunition through a 9mm suppressor. While the dimensions of a .380 ACP and 9mm round are similar, the higher pressure generated by a 9mm round can cause excessive stress on a suppressor designed for .380 ACP. Under such conditions, the suppressor may fail, posing a safety hazard.

Does a 9mm have more stopping power than a 380?

Yes, in general, a 9mm round has more stopping power than a .380 ACP round. This is because a 9mm round typically has a higher muzzle energy and a larger bullet diameter, resulting in more kinetic energy transfer upon impact. However, stopping power is influenced by various factors like shot placement, bullet design, and other variables, so it is important to consider all factors when determining the effectiveness of a specific caliber.

Will .380 ACP stop someone?

.380 ACP, also known as 9mm Short, is a popular self-defense round that has proven effective in many scenarios. While it may not have the same stopping power as larger calibers like 9mm, .40 S&W, or .45 ACP, it can still cause significant damage and potentially stop an attacker. Shot placement and shot quantity play important roles in stopping an assailant, so proper training and accuracy remain crucial regardless of the caliber chosen for self-defense.

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
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