The Difference Between 45 GAP and 45 Auto

The 45 GAP and 45 Auto are two popular pistol cartridges, but there is some confusion as to the differences between them. It’s important to understand the difference between these two rounds so you can find the right ammo for your gun.

What is 45 GAP?

The 45 GAP is a cartridge designed by Glock specifically for use in their pistols. It was designed to offer the same performance as the 45 Auto, but with a shorter case length. The 45 GAP is the same diameter as the 45 Auto, but it is shorter and has a larger primer. The 45 GAP has a case length of 21.6mm, while the 45 Auto has a case length of 21.8mm. The 45 GAP is also slightly less powerful than the 45 Auto.

What is 45 Auto?

The 45 Auto is a popular pistol cartridge that was designed by John Browning in 1904. It is the same diameter as the 45 GAP, but it has a longer case length. The 45 Auto has a case length of 21.8mm, while the 45 GAP has a case length of 21.6mm. The 45 Auto is more powerful than the 45 GAP and is the most commonly used pistol cartridge in the United States.

Which is Better?

The 45 GAP and 45 Auto are both effective rounds, but the 45 Auto is the more popular choice. The 45 Auto is more powerful and has a longer case length, which makes it better for target shooting and hunting. The 45 GAP is shorter and has a larger primer, which makes it better for concealed carry and self-defense.

What Guns Can Use 45 GAP and 45 Auto?

The 45 GAP is designed specifically for use in Glock pistols, so only Glock pistols can use the 45 GAP. The 45 Auto, on the other hand, can be used in a variety of pistols, including 1911s, Glocks, and other popular handguns.

Conclusion

The 45 GAP and 45 Auto are two popular pistol cartridges, but they are not interchangeable. The 45 GAP is designed specifically for use in Glock pistols, while the 45 Auto can be used in a variety of pistols. The 45 Auto is more powerful and has a longer case length, which makes it better for target shooting and hunting, while the 45 GAP is shorter and has a larger primer, which makes it better for concealed carry and self-defense.