Hodgdon load data shows a .452 bullet.
Metrically, it's known as the 11.43x23mm for marketing/military nomenclature purposes. The bullet itself has a diameter of 11.5mm/.452 inches.
roughly .452 diameter
452
The caliber is defined as the diameter of the projectile that a certain firearm fires.A good example is the 308 Winchester.This is a rifle that fires a .308in.diameter bullet thru the barrel of this firearm.Most firearms fire a projectile that is under a 1/2in.in diameter projectile.They range in size from .223 to .452"in.I hope that you find this informative.
452 cubic inches rounded up.
9mm= .355 45 ACP = .452
45 cal is a 451 diameter or 452 diameter bullet. close in diameter.
The 9mm means that the bore is 9mm inside diameter . The bullet will be roughly 9mm or a little more in diameter. The 45 means basically the same, the bore of the barrel is .45 caliber. but the bullet will be anywhere from .451 to .452 in diameter depending on manufacture and on type of metal the bullet is made out of. So basically yes.
2 percent of 452 is 9.04. .02 * 452 = 9.04.
2:452:452:452:45
452+400=852
452