What is 45 gap vs 45 acp?

The .45 GAP (Glock Automatic Pistol) and .45 ACP (Automatic Colt Pistol) are both popular handgun cartridges that are similar in caliber but differ in a few key aspects.

The .45 ACP was developed by John Browning in 1905 for use in the Colt Model 1911 pistol, and has since become one of the most popular handgun cartridges in the world. It has a bullet diameter of .451 inches and a maximum pressure of 21,000 psi. The .45 ACP typically uses a 230 grain bullet and is known for its stopping power and reliability.

The .45 GAP was developed by Glock in 2003 as a shorter and more compact version of the .45 ACP. It has a bullet diameter of .451 inches, but operates at a higher pressure of 23,000 psi. The .45 GAP typically uses a 185 grain bullet and was designed to fit in a smaller, more concealable handgun while still delivering the power of a .45 caliber round.

Overall, the .45 ACP is more widely available and has a greater variety of bullet weights and types to choose from. On the other hand, the .45 GAP offers slightly higher performance in a more compact package. Ultimately, the choice between the two cartridges will depend on personal preference and the intended use of the handgun.