9mm vs 45 ACP: 9mm Wins!

Hornady Critical Defense 9mm.
Why the 9mm Luger Beats the .45 ACP in Self-Defense

9mm vs 45 ACP is a battle that has raged for decades and finally we want to just say it.

9mm ammo wins 99 times out of 100. And we’re not the only ones who think that.

The Age Old Debate Fueled by Doubt

When it comes to protecting yourself and your loved ones, the last thing you want is to be caught with the wrong weapon.

But with so many options available, how can you be sure you’re making the right choice?

Enter the age-old debate of the 9mm Luger vs. .45 ACP – a topic that has sparked countless arguments and spilled rivers of ink.

While both rounds have their devoted followers, we firmly believe that the 9mm Luger is the better choice for most people.

In this article, we’ll dive into the reasons why, using evidence and expert opinions to support our claims. From higher capacity to faster muzzle velocity, we’ll give you all the facts you need to make an informed decision when choosing a self-defense handgun round.

So sit back, grab a cup of coffee, and let’s settle this once and for all: 9mm Luger or .45 ACP?

Higher Capacity

One of the biggest advantages of the 9mm Luger over the .45 ACP is its higher capacity.

Most firearms chambered in 9mm Luger can hold more rounds than those chambered in .45 ACP, giving you more opportunities to stop an attacker or multiple attackers in a self-defense situation.

While the number of rounds a gun can hold varies depending on the specific model, the general rule is that 9mm Luger firearms have a larger capacity than their .45 ACP counterparts.

Double stack magazines have turned a simple Glock 19 into a 20-round monster and double stack 1911s are increasingly popular, too.

This means you can potentially fire more rounds without having to reload, which could be crucial in a high-stress encounter. With the ability to carry more ammunition, the 9mm Luger offers a greater sense of security and preparedness.,

Of course high capacity magazines aren’t California legal, or new York legal, or New Jersey legal, Washington State legal, it goes on…

Mag limits, then, could definitely play a part in your decision making process. If you’re only allowed a 10 round magazine then this advantage simply doesn’t apply to you.

Sorry about that.

Faster Muzzle Velocity

In addition to its higher capacity, the 9mm Luger also boasts a faster muzzle velocity than the .45 ACP.

Muzzle velocity refers to the speed at which a bullet exits the barrel of a firearm. The higher the muzzle velocity, the more kinetic energy the bullet carries, and the more damage it can do.

Overpenetration is a caveat to that, but it’s less of an issue with hollow points that have been honed specifically for self defence and rapid expansion.

On average, the 9mm Luger has a muzzle velocity of around 1,200 feet per second, while the .45 ACP has a muzzle velocity of around 850 feet per second. This means that the 9mm Luger can deliver a more powerful impact on its target, making it a more effective choice for self-defense.

Additionally, the faster muzzle velocity of the 9mm Luger also means that it has a flatter trajectory than the .45 ACP, which can make it easier to aim and hit your target accurately.

Combined with its higher capacity, the faster muzzle velocity of the 9mm Luger makes it a superior choice for self-defense situations.

And, as we’ll see in the next section, the 9mm Luger’s faster muzzle velocity also means that it has lower recoil than the .45 ACP, making it easier to shoot accurately and with greater control.

9mm vs 45 ACP Stopping Power is Equal

When it comes to self-defense, stopping power is paramount and also something of a myth.

While some argue that the .45 ACP has superior stopping power due to its larger size and heavier bullet, the 9mm Luger is not far behind. In fact, many studies have shown that the two rounds have comparable stopping power, with the right ammunition and shot placement.

Research has found that shot placement and penetration are the most important factors in stopping an attacker. The 9mm Luger has a smaller bullet diameter than the .45 ACP, but it also has a faster muzzle velocity, which can lead to deeper penetration.

Additionally, modern advancements in ammunition technology have allowed for the development of hollow point bullets that expand upon impact, increasing the chances of incapacitating an attacker.

Ultimately, the choice between the 9mm Luger and the .45 ACP comes down to personal preference and shooting ability. While the .45 ACP may have a slight edge in stopping power, the 9mm Luger’s lower recoil and comparable stopping power make it a strong contender for self-defense use.

And with its widespread availability, increased capacity, velocity and lower cost, it’s a practical choice for those looking to protect themselves and their loved ones.

Availability and Cost

When considering the choice between the 9mm Luger and the .45 ACP for self-defense, availability and cost are important factors to consider. The 9mm Luger has gained popularity among law enforcement and civilians alike due to its widespread availability and lower cost. This availability means that ammunition and firearms are easier to find, which can make it a more practical choice for those looking for a reliable weapon for self-defense.

In addition to availability, the 9mm Luger is also less expensive than the .45 ACP. This lower cost makes it an attractive option for those on a budget or looking to save money. It also allows for more frequent practice and training, which is essential for developing shooting ability and proficiency.

Ultimately, when it comes to choosing a firearm for self-defense, availability and cost are important factors to consider.


after examining the factors of capacity, muzzle velocity, recoil, stopping power, availability, and cost, it is clear that the 9mm Luger is the best choice for self-defense.

This versatile round offers many advantages over the .45 ACP and is the preferred option for most gun owners. Choosing the right handgun round is a critical decision that should not be taken lightly, so we encourage you to consider the evidence and make an informed choice.

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  • Nick Hall

    Nick is a lifelong gun enthusiast who has a simple mission. He wants to find the best deals for guns online and help you make the best choices with weapons your life may depend on one day.Nick won a minor league shooting competition at the age of 11 and it all went from there. Now he runs one of the biggest firearms websites on the net and his work has featured in Playboy US, Tatler Asia, Forbes and a whole host of national magazines and websites.

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