Many have often argued the topic of which caliber gun to choose, especially when it comes to these two popular choices. A quick comparison of the two popular caliber choices may lean toward the ease-of-use of the 9mm, especially for beginners. Let’s look a little more in-depth at the smaller 9mm compared to the larger .45ACP.
It’s a given that .45 is obviously the larger bullet size, meaning the magazine is going to hold fewer total rounds. You will be able to carry more 9mm bullets with a larger magazine capacity. Both size and capacity are valid arguments, however, meaning that choosing one over the other is a little less than black-and-white.
A 9mm bullet in the U.S. is considered a 9x19mm size. 9mm is approved for use by law enforcement and the military in the United States. They are liked for their compact size and ease of handling. They are disliked for the simple fact that the round is a smaller size.
The 9mm caliber does have a few given advantages over the .45 caliber. The larger magazine capacity to a similarly sized firearm means you have more bullets available, meaning you can take more potential shots. This is something to keep in mind if you’re using the gun for self-defense whether in-home, carrying, or both. Because 9mm is more compact in size than its .45 counterpart, it is obviously going to be lighter and smaller – easier to carry, and especially easier to conceal when carrying. .45s are generally bulkier and less user-friendly when considering a conceal carry option.
9mm is not only easier to carry, it’s overall easier to handle with less recoil. It also correspondingly has a higher muzzle velocity than the .45 ACP as the rounds weigh less. 9mm guns and ammo are also considerably less pricey than those of .45 caliber.
The .45 caliber has always been one of the most reliable on the market. It lends itself as a great home defense gun because of its high stopping power. The fact that it has larger, slower ammo than the 9mm, over-penetration isn’t a huge problem. This caliber also has 100-plus years of testing and iteration backing it and making for powerful and reliable results.
It can be hard to answer whether a fast, light cartridge or a heavy, slow one is the best option, but consider what you would be using the gun for when deciding which route to go.