roughly .452 diameter
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.
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.
about 36km
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.
If you mean the .45 ACP (.45 Auto) the velocity at the muzzle depends on the load of the particular cartridge. Typically somewhere between 830 and 1080 feet per second.
45 cal is a 451 diameter or 452 diameter bullet. close in diameter.
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The main difference between a 10mm bullet and a .45 bullet is their size and energy. A 10mm bullet is smaller in diameter compared to a .45 bullet, but it travels at higher velocities and has more energy. .45 bullets are larger, slower moving, but they have more stopping power due to their size.
Caliber refers to the diameter of a bullet. A bullet for a .38 Special is actually .357 inches across, and for a .45 auto, about .451 inches. The 45 bullet will be wider, and usually heavier. Please note that this is only the BULLET, which is the projectile. The CARTRIDGE (case, primer, powder, bullet) of the two are different size, shape, design and weight. There also is the .45 Colt bullet (often referred to as a .45 Long Colt). This is about the same diameter as the .45 auto but has a longer cartridge than the .45 auto or 38 Special.
If you are talking about a .45 acp The bullet diameter of .451 equates to 11.5mm. If you are talking about a bullet used in rifle calibers (45-70) etc.then the bullet diameter of .457 equates to 11.7mm.
any 45 cal ammo will work in a 45 cal pistol