All else being equal, the one that has more foot pounds of energy.
32. Cal
The 9mm Lugar round is longer than a .380 Caliber, which is also equal to 9mm in diameter. The overall cartridge and the bullet is larger and the case contains more powder. The 9mm Lugar is more powerful. BTW, the .40 cal Smith and Wesson is also called a 10mm. It is only 1mm larger in diameter and a little more powerful than a 9mm Lugar.
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.
4.5 cal (9mm) like most guns
no, although the diameter of the bullet is about the same .356 for 9mm and 357/358 for the 38 cal. that metal cases will not interchange with other guns. i.e., the 9mm case does not feed in a 38 nor will a 38 feed in a 9mm..................
The .357 has a longer case and a heavier bullet; it is identical to a .38 in diameter but far more powerful. This is why a .38 will fire in a .357 but not the other way around.
9mm
uuhhh... no, you cannot fire a 9mm parabellum through a .40 s&w.9mm converted to inches is .35 now you see that .40 is a little wider.
45 is more powerfull. larger bullet, more powder = s more knock down power.I own both calibers. It's obvious just by shooting each gun.
Both terms describe the diameter of the bullet in decimal parts of an inch. For example, a .357 bullet is 357 thousands of an inch in diameter and the .45 bullet is 45 hundredths of an inch in diameter. These labels of bullets are most common in the United States. Much of the world refers to bullet sizes in metric terms, i.e. 9mm means a bullet that is 9 millimeters in diameter.
no. nor can you fit a 40 cal shell into a 9mm chamber...............
A 9mm of some type. What markings are on it?