Comparing Liberty vs Norma

Liberty Ammo is challenging some common misconceptions.  That’s why Liberty Ammunition introduced an “Ammo Comparison Series.” To shed light on the kinetic energy differences among various ammunition brands and calibers.  Choosing the right ammunition for self-defense or target shooting and understanding the science behind it can make all the difference.

The Physics Behind Kinetic Energy

Gary Ramey, the CEO of Liberty Ammunition, kicked off the series by debunking a prevailing myth. Many people believe that a heavier bullet equates to greater effectiveness. However, Ramey pointed out that kinetic energy depends not only on weight but also on velocity. Velocity is a much more important factor as velocity is squared, while only ½ weight of a bullet counts in the equation.  Plus a bullet must be designed to dump all the energy in the target.

9mm Showdown: Liberty vs. Norma

In the key self-defense calibers like 9mm, Liberty Ammunition stood out against Norma. Here’s a breakdown:

Liberty OverWatch: It hits 15% harder than Norma and is 33% lighter. This means you can carry more rounds with less weight, offering a practical advantage in real-world scenarios. Additionally, Liberty Ammo ensures that all the energy is effectively delivered into the target.

Lighter Civil Defense: This ammunition hits 12% harder than Norma and is 54% lighter. Imagine having the perfect balance of power and convenience in your self-defense rounds. Liberty’s Civil Defense ammo delivers just that.

What does that mean in real-life?

Liberty ammo is lighter, reducing the overall weight of your loaded magazine. This means you’ll experience less fatigue when carrying your firearm, making it easier to react quickly in a critical moment. Moreover, carrying additional magazines becomes more manageable, ensuring you’re well-prepared for any situation that may arise.

Similarly, the 54% weight reduction in Civil Defense rounds translates to remarkable ease of carry. Whether you’re wearing shorts, leggings, or a duty belt, the lighter load makes a noticeable difference in comfort, especially if you’re carrying extra magazines.

To witness the differences in action, watch this short video.


45 ACP Showdown: Liberty vs. Norma

In the .45 ACP caliber comparison, Liberty once again showcased its superiority:

Liberty Civil Defense: It hits a remarkable 45% harder than Norma while being 55% lighter to carry. Picture yourself carrying a sidearm chambered in .45 ACP with Liberty Civil Defense rounds – you get the advantage of raw stopping power without the burden of excessive weight.

Liberty OverWatch: Notably, Liberty OverWatch hits 40% harder with a 40% reduction in projectile weight. It’s designed to rupture at the bottom of the cavity, ensuring that all energy is delivered to the target and minimizing the risk of over-penetration.

The Science Behind the Numbers

The kinetic energy of projectiles is calculated using the SAAMI formula: E=(WV^2)/(14000gc), where W is the weight of the projectile in grains, V is the velocity in feet per second, and gc is the gravitational constant.


The Liberty Ammunition “Ammo Comparison Series” demonstrates that the effectiveness of ammunition is a nuanced science. It’s not just about the weight of the bullet but also about velocity and design. Liberty’s commitment to delivering maximum kinetic energy and reducing over-penetration sets it apart.

As a leading US manufacturer of self-defense ammunition, Liberty Ammunition continues to focus on three core benefits: lighter to carry, penetration through barriers, and effective energy transfer to the target. With Liberty Ammunition, you get ammunition that redefines performance and safety.

Stay tuned for more insights from the “Ammo Comparison Series” and explore the world of ammunition science with Liberty Ammunition.  You can read the official press release at this link Press Release.

Ready to experience the unmatched performance of Liberty’s Civil Defense line of ammo? Visit Liberty Ammunition’s official website and explore their full range of products designed to keep you safe. For the Civil Defense line, click the link here and for the OverWatch line click this link here.

FAQ: Liberty vs. Norma Ammunition

Q1: What makes Liberty ammunition stand out compared to Norma ammunition?
A1: Liberty ammunition is known for its superior kinetic energy, which translates to more stopping power. It’s also significantly lighter, making it more convenient to carry. Norma ammunition offers good performance but may not match Liberty’s kinetic energy and weight- saving benefits.

Q2: Does Liberty ammunition cost more than Norma ammunition?
A2: Liberty ammunition is typically priced at a slight premium compared to Norma ammunition. However, for just a few pennies more, you can carry the best ammunition available. Why settle for less when you can ensure your safety with Liberty’s superior performance?

Q3: Is Liberty ammunition available for different calibers besides 9mm and .45 ACP?
A3: Yes, Liberty Ammunition produces ammunition for various calibers, including 10mm, .357 Magnum, .357 SIG, .38 Special, .380 ACP, .40 S&W, .223, and .300 Blackout, among others. Be sure to check Liberty’s product offerings (link here) for the specific caliber you need.

Q4: Is there any over-penetration risk with Liberty ammunition?

A4: Liberty ammunition is designed to minimize over-penetration risks. The projectiles are engineered to deliver maximum energy to the target while reducing the chance of exiting the threat and causing unintended damage.

Q5: Where can I purchase Liberty ammunition?
A5: Liberty Ammunition products are available through various retailers, both online and in physical stores. You can check Liberty’s official website for a list of authorized dealers and distributors.

Q6: Are there any safety considerations when using Liberty ammunition?
A6: Like all ammunition, it’s crucial to follow safety guidelines when using Liberty ammunition. Store it in a cool, dry place, handle it with care, and always practice safe firearm handling. If you have specific safety concerns or questions, consult with Liberty or a certified firearms instructor.

Q7: Can I use Liberty OverWatch ammo for self-defense?
A7: Absolutely, Liberty OverWatch ammo is an excellent choice for self-defense. It offers superior performance, hitting 15% harder and being 33% lighter than some alternatives. Its design ensures effective energy transfer to the target, making it a reliable option for personal protection.


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