If you had to use FMJ and was forced to pick between 9mm and .45, what would you choose? From a Glock 19 and 5 inch barreled 1911. .45ACP on top and 9mm on bottom. Both WWB from 5 feet, and direction of travel was from the right. I use Gold Dots, I just thought it would be interesting to show this test. Wanna kill these ads? We can help!