What is the Difference Between the .45 ACP and the .45 GAP Bullets?

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When you think of .45 caliber, you are most likely imagining the .45 ACP cartridge. This is, after all, the quintessential .45 caliber semi-automatic pistol cartridge. In 2003, Glock collaborated with the ammunition manufacturer CCI-Speer to introduce a new cartridge, the .45 GAP, with the purpose of creating a .45-caliber cartridge that could fit in a more compact handgun frame than .45 ACP. There are several reasons behind the .45 GAP’s creation and differences between the cartridges. .45 ACP: The Fightin’ .45 To better understand why the .45 GAP exists, it’s essential to know a brief history of its predecessor, the .45 ACP. The .45 ACP cartridge was designed in 1904 by the legendary John Moses Browning, at the behest of the U.S. military, then engaged in the Philippine-American War. In the aftermath of the Moro Rebellion at the turn