Difference 38 Special vs 9mm

When it comes to choosing between the 38 Special and 9mm handguns, understanding the key differences is crucial for selecting the right firearm for your needs. Both calibers have their own unique characteristics and performance attributes that can make a significant impact on self-defense, competition, and recreational shooting.

Key Takeaways:

  • The .38 Special is a revolver round, while the 9mm is typically used in semi-automatic pistols.
  • The .38 Special is rimmed and taller than the 9mm, with a larger case capacity.
  • Both calibers are effective for self-defense and perform well in ballistic gel tests.
  • The .38 Special is commonly used in concealed carry revolvers with a 5-round capacity, while the 9mm is found in concealed carry pistols with a 7-round+ capacity.
  • The .38 Special is generally more accurate, while the 9mm has higher velocity and muzzle energy.

Overview of the .38 Special and 9mm

Before we dive into the details, let’s take a closer look at the .38 Special and 9mm calibers and how they are commonly used in firearms.

The .38 Special is a popular revolver round that has been around since 1898. It is typically used in revolvers and has a rimmed design, meaning the base of the cartridge has a small rim that helps with extraction. The .38 Special has a larger case capacity compared to the 9mm, allowing it to hold more gunpowder which results in slightly more muzzle energy.

On the other hand, the 9mm is commonly used in semi-automatic pistols. Developed in 1901, it was designed to be a military cartridge and has since gained popularity in law enforcement and civilian use. The 9mm is a rimless cartridge, which means it does not have the small rim at the base like the .38 Special.

.38 Special9mm
Revolver roundSemi-automatic round
Larger case capacityRimless design
Developed in 1898Designed in 1901

Both the .38 Special and 9mm are widely used for self-defense, competition, and recreational shooting. They have proven to be effective calibers and perform well in ballistic gel tests, which simulate human tissue.

Now that we have a better understanding of the .38 Special and 9mm, let’s explore their differences in self-defense and stopping power in the next section.

Self-Defense and Stopping Power

When it comes to self-defense and stopping power, both the .38 Special and 9mm calibers offer reliable performance, but there are important factors to consider. The .38 Special is commonly used in concealed carry revolvers with a 5-round capacity, while the 9mm is found in concealed carry pistols with a 7-round+ capacity. This difference in capacity may be a crucial factor for some individuals when selecting a caliber for self-defense purposes.

While both calibers perform well in ballistic gel tests, the .38 Special tends to have a slightly wider diameter bullet, which can lead to more tissue damage upon impact. However, the 9mm typically has a higher velocity and muzzle energy, which can contribute to deeper penetration. It’s important to note that ammunition selection plays a significant role in achieving optimal performance for both calibers.

When choosing between the .38 Special and 9mm for self-defense, it’s essential to consider factors such as recoil and ease of use. The .38 Special, being a revolver round, generally has less recoil compared to the 9mm, which may make it more manageable for some shooters, especially those who are new to firearms. On the other hand, the 9mm’s semi-automatic pistols often have higher magazine capacities and faster reload times, providing potential advantages in self-defense scenarios that involve multiple threats.

CaliberFeaturesAdvantagesDisadvantages
.38 SpecialRimmed revolver roundLess recoil, wider bullet diameterLower magazine capacity
9mmSemi-automatic pistol caliberHigher velocity, deeper penetration, larger magazine capacityMore recoil

Ultimately, the choice between the .38 Special and 9mm for self-defense comes down to personal preference, firearm platform, and individual shooting abilities. It is recommended to try out different calibers and firearms at a shooting range to determine which one feels most comfortable and controllable for you. Remember that proper training and proficiency with your chosen caliber are crucial for effective self-defense.

Accuracy and Velocity

Accuracy and velocity play crucial roles in handgun performance, and when comparing the 38 Special and 9mm, there are noticeable differences to consider. The 38 Special is generally known for its accuracy, making it a popular choice for target shooting and precision shooting competitions. Its larger projectile size and slower muzzle velocity allow for greater control and less felt recoil. This can result in tighter groups and more consistent shot placement.

On the other hand, the 9mm offers higher velocity and muzzle energy, which can translate to flatter trajectories and increased bullet expansion. This makes the 9mm a preferred choice for those who prioritize stopping power, especially in self-defense scenarios. The higher velocity also means less bullet drop over longer distances, potentially enhancing accuracy in certain situations.

It’s important to note that the accuracy and velocity of both calibers can be influenced by various factors, such as the length of the barrel, the weight of the firearm, and the type of ammunition used. Recoil can also affect accuracy, with the 9mm typically generating more felt recoil than the 38 Special due to its higher energy. Ultimately, shooters should consider their own preferences, shooting style, and intended applications when deciding between these two calibers.

CaliberAccuracyVelocity
.38 SpecialGenerally more accurateSlower muzzle velocity
9mmOffers higher velocityIncreased muzzle energy

Ballistics and Penetration

When it comes to ballistics and penetration, the 38 Special and 9mm calibers offer distinct characteristics that are important to consider for self-defense purposes. The 38 Special, with its larger case capacity and slower velocities, provides a balance between power and control. This cartridge is known for its effectiveness at close range, making it a popular choice for concealed carry revolvers.

On the other hand, the 9mm offers higher velocities and deeper penetration, making it suitable for a wider range of self-defense scenarios. With its popularity in semi-automatic pistols, the 9mm provides a higher round capacity, giving users more ammunition in critical situations. Additionally, the 9mm’s higher muzzle energy translates to better stopping power, making it a reliable option in self-defense encounters.

It’s important to note that ammunition selection plays a significant role in the performance of both calibers. Different bullet designs, weights, and velocities can impact terminal ballistics and penetration. Hollow point ammunition, for example, is designed to expand upon impact, creating larger wound channels and increasing stopping power.

To give you a better understanding of the differences in ballistics and penetration between the 38 Special and 9mm, refer to the table below:

CaliberMuzzle Velocity (feet per second)Penetration Depth (inches)
.38 Special850-1,2009-16
9mm1,000-1,20012-18

As you can see, the 9mm generally offers higher muzzle velocities and deeper penetration compared to the 38 Special. However, it’s important to consider that different bullet types and loads can result in variations within each caliber.

Cost and Availability

Aside from performance, it’s important to factor in cost and availability when deciding between the .38 Special and 9mm calibers. Let’s explore these considerations to help you make an informed decision.

When it comes to cost, the 9mm generally has the advantage. Its popularity and widespread usage make it more affordable compared to the .38 Special. Additionally, the availability of 9mm ammunition is excellent, with a wide range of options from various manufacturers. This accessibility ensures that you can easily find and purchase 9mm rounds for your semi-automatic pistol without breaking the bank.

On the other hand, the .38 Special, being commonly used in revolvers, may have slightly higher ammunition costs. Its usage is more niche compared to the 9mm, which can lead to higher prices and a more limited selection. While the .38 Special ammunition is still readily available, you may need to shop around or buy in bulk to find the best deals.

Cost and Availability Comparison

Consideration.38 Special9mm
CostGenerally higherMore affordable
AvailabilityWider selection, but potentially limitedExcellent

When it comes to cost and availability, the 9mm emerges as the more practical choice. Its affordability and accessibility make it an attractive option for those who value both performance and budget-friendly ammunition. However, if you have a preference for revolvers or are willing to invest in the slightly higher costs associated with the .38 Special, it can still be a viable option.

Remember, it’s essential to weigh all factors and consider your specific needs and preferences when selecting a caliber for your handgun. Now that we’ve examined cost and availability, let’s move forward and explore other relevant aspects, such as accuracy, ballistics, and more.

Conclusion

After exploring the differences between the .38 Special and 9mm calibers, it’s clear that both have their merits, and the best choice depends on your specific needs and preferences. As popular cartridges for self-defense, competition, and recreational shooting, these calibers offer reliable performance and a wide range of ammunition options.

The .38 Special, with its revolver design and larger case capacity, is commonly used in concealed carry revolvers with a 5-round capacity. It provides excellent accuracy and is favored by many shooters for its reliability and simplicity. On the other hand, the 9mm is typically found in semi-automatic pistols with a 7-round+ capacity, making it a preferred choice for those who prefer higher magazine capacity.

When it comes to self-defense and stopping power, both calibers perform well in ballistic gel tests. The .38 Special delivers adequate energy transfer, while the 9mm offers deeper penetration. Recoil can vary depending on factors like barrel length, gun weight, and ammunition type, so it’s important to consider these factors when choosing between the two calibers.

In terms of cost and availability, the 9mm is generally cheaper and more widely available compared to the .38 Special. This affordability and availability make the 9mm a practical choice for many shooters. However, it’s worth noting that the .38 Special is commonly used in revolvers, which appeals to those who prefer a more traditional and reliable platform.

Ultimately, the decision between the .38 Special and 9mm comes down to your personal preferences, shooting needs, and considerations. It’s recommended to try out both calibers, if possible, and conduct further research before making a purchase. Whatever you choose, remember to prioritize proper training, safe handling, and responsible firearm ownership.

FAQ

Q: What is the difference between the .38 Special and 9mm?

A: The .38 Special is a revolver round, while the 9mm is typically used in semi-automatic pistols. The .38 Special is rimmed and taller than the 9mm, with a larger case capacity.

Q: Which caliber is better for self-defense?

A: Both the .38 Special and 9mm are effective for self-defense and perform well in ballistic gel tests. The .38 Special is commonly used in concealed carry revolvers, while the 9mm is found in concealed carry pistols with a higher capacity.

Q: Which caliber is more accurate?

A: The .38 Special is generally more accurate than the 9mm.

Q: What are the differences in velocity and muzzle energy?

A: The 9mm has higher velocity and muzzle energy compared to the .38 Special.

Q: What are the differences in ballistics and penetration?

A: The .38 Special has lower velocities, while the 9mm offers deeper penetration. Both calibers are suitable for self-defense, but ammo selection is important.

Q: Which caliber is more affordable and widely available?

A: The 9mm is generally cheaper and more widely available compared to the .38 Special.

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About Jillian Harness

I'm the founder and editor of How Which Why. I love to write, and always curious about almost anything from science, food, architecture, sports, design, and home decor trends from all corners of the globe. My moto is "No question is too dumb to ask".