Generally speaking, the .45 caliber bullet is larger in diameter and heavier than a 9mm bullet.
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.
The most obvious different is the 10mm bullet is smaller in diameter than the .45. A 10mm bullet is .40 of an inch and the .45 is .45 of an inch. Other differences, depending on exactly which cartridge you are referring to, are muzzle energy and velocity.
What about it?
The duration of Big Bullet is 1.5 hours.
Caliber refers to the diameter of a bullet (bullet is the part of a cartridge that is fired out of the gun). A .223 caliber bullet is .223 inches across. It is normally used as a rifle cartridge. a .45 caliber bullet is more than twice as wide as a .223, and is usually used in pistols. The .223 is lighter- it weighs about 1/4 of a .45 bullet, and they are different shapes- .223 is usually pointed, the .45 is rounded.
A 410 shotgun is basically a 41 caliber smoothbore. A 45 caliber round may fit in the chamber, but the bullet is too big. Don't do it.
No
If you fire a .45 caliber bullet at a paper target, it will leave a .45 inch hole.
The maximum effective range of a .45 caliber bullet is approximately 120 meters.
The .45 caliber bullet is not used in a sniper rifle.