The main difference between a 9mm and a .45 caliber bullet is the diameter. A 9mm bullet has a diameter of 9 millimeters, while a .45 caliber bullet has a diameter of .45 inches. The .45 caliber bullet is larger and generally heavier than the 9mm bullet, resulting in differences in recoil, speed, and stopping power.
No. 9mm Parabellum ammo is about .35 caliber, and the .45 is, well, .45 caliber. The .45 cartridge is too wide to fit in the chamber.
Two different cartridges. First, the .45 is larger in diameter (and heavier) than the 9mm- being 45/100ths of an inch- the 9mm is about 35/100ths. They were invented in two different places, and have different amounts of power.
@ .05 inches
No. He was shot by a 9mm.
the are also chambered for the 38 caliber, 9mm caliber and 22 caliber
.22, 9mm, 45 ACP are among them.
Assuming you're referring to the 9x19 Parabellum/Luger round, the 9mm travels faster than the .45 ACP.
9mm= .355 45 ACP = .452
Caliber (or calibre) is a measurement of the inside diameter of the barrel, and is also used to refer to the particular cartridge fired by a given gun. A .45 caliber gun fires a bullet that is ROUGHLY .45 inches in diameter. A 9mm uses a bullet that is ABOUT 9mm in diameter.
The 9mm round measures .356 inch in diameter. a 380 is 95 gr 9mm 124gr 40 is180 gr 45 is 230 gr
There are various difference, but the most common answer would be the .45 is .05 of an inch larger in diameter than a .40.