9mm vs 45 ACP(2023) - Know The Difference

When comparing ammo, one of the most trending topics is "9mm vs 45 ACP."As both calibers are popular with their specifications still it's always an interesting topic “ what is the difference between 9mm ammo & 45 Acp ammo?

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9mm Vs 45 ACP - What Is The Difference?

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9mm and .45 ACP are two of the most popular handgun calibers in the world.9mm is a smaller, lighter cartridge that provides a higher magazine capacity and less recoil. 45 ACP is more extensive, heavier, and delivers more stopping power.Both have been used in military and law enforcement applications and have proven effective.The choice between the two often comes down to personal preference and the intended use of the firearm.This is not it. Let's compare the development, applications, accuracy, stopping power, recoil, magazine capacity, price & availability.

History & Development: 9mm Vs 45 ACP


9mm Ammo Development


9mm ammo, also known as 9mm Parabellum or 9mm Luger, or simply 9mm, is a rimless, tapered firearms cartridge. Austrian firearm designer Georg Luger initially designed the caliber in 1901. It has been produced since 1902.This new caliber improved on the previous handgun ammunition, which was large and heavy. Still today, the compact cartridge has less recoil and allows for easy handling. It’s lightweight and accurate, and because of its small size, handguns chambered in 9mm hold significantly more cartridges than those in higher calibers.

45 ACP Ammo Development


John Browning developed the .45 ACP (Colt Automatic Pistol) or 45 Auto in 1904. It was intended for use in the M1911 pistol used by the US military..45 ACP is an effective combat pistol cartridge. It has been used for guns such as the M1911, M3 Grease Gun, USP45, and many more. The .45 is known for being the bullet used in the M1911 and for being the US military's choice for their pistols for almost 75 years.

9mm Vs 45 ACP- Specifications


9mm Ammo Specifications

  • Bullet diameter : 9.01mm (0.355 in)
  • Neck dimension: 9.65mm
  • Base diameter : 9.93 mm
  • Rim diameter : 9.96mm
  • Rim thickness : 0.90 mm
  • Case length : 19.15 mm (0.754 in)
  • Overall length: 29.69 mm (1.169 in)
  • Maximum pressure (CUP): 235.00 MPa (34,084 psi)
  • 45 ACP Ammo Specifications

  • Bullet diameter : 11.5 mm (.452 in)
  • Neck diameter : 12.0mm
  • Base diameter : 12.1 mm
  • Rim diameter : 12.2 mm
  • Rim thickness : .049 in (1.2 mm)
  • Case length: .898 in (22.8 mm)
  • Overall length : 1.275 in (32.4 mm)
  • Maximum pressure (CUP) : 19,900 psi (137 MPa)
  • 9mm Vs 45 ACP- Size & Weight

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    Bullet size plays a significant role in shooting performance. The heavier the bullet, the more stopping power it contains. A larger cartridge means more gunpowder.When we compare the 9mm and 45 Acp in size or weight, the 9mm is smaller and more compact and has less power.On the other hand, the .45 ACP is comparably larger, heavier, and more expansive. Therefore, it can hold more gunpowder and stopping power.

    9mm Vs 45 ACP - Magazine Capacity

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    Regarding magazine comparison, 9mm magazines have a higher capacity than 45 ACP.Pistols chambered in 9MM tend to have a high round capacity for the magazine. Most 9mm handguns come with magazines that range from 12 to 15 rounds. Some guns have exceeded that, and the options will vary from gun to gun.Most of the .45 ACP guns are from 1911. As a rule, their maximum supply is eight rounds in a magazine or up to 15 with extended magazines.Since the 45 ACP is larger, the pistol usually carries fewer rounds in the magazine. For example, the 1911 pistol usually holds 7-8 rounds in a standard magazine but has the option of taking ten rounds in an extended magazine.

    Price & Availability Comparison

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    If we compare 9mm vs. 45 ACP according to its price & availability, there is little difference.As per the availability, both calibers are readily available to buy at every ammo store in the USA. Every seller lists these two handgun calibers at the top of the list.For the price comparison, 9mm ammo is cheaper because of its popularity than the 45 ACP ammo.9mm ammo approximate Per Round Cost: 0.17 To $2.1045 ACP approximate per round cost: $ 0.38 To $4.00Prices will always favor 9mm. So, if you’re looking for a budget-friendly option, the 9mm is a better choice.

    Read complete post here: https://www.bulkcheapammo.com/blog/9mm-vs-45acp-comparison

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