Technically speaking- none. A bullet is the solid metal part of a cartridge that is fired out of the barrel. How much gunpowder is in a 9mm Parabellum CARTRIDGE will depend on the powder used and the bullet weight. I reload with 4.6 grains of Bullseye powder with a 115 gr bullet, but there are dozens of other loads.
A single 9mm bullet is about 3-6 cents. A 9mm Parabellum (Luger) CARTRIDGE is about .30-.55.
There is no one answer- because there is no one gunpowder, and no one bullet weight. Amount of powder is driven mainly by those two factors. If you intend to reload, get a copy of ABCs of Reloading, and read entire book first- excellent reference.
The .380 is a 9mm bullet. But, going with the assuming that you're comparing the .380 ACP (9x17mm) against the 9mm Luger/9mm Parabellum (9x19mm), the answer would be no.
Generally speaking, the .45 caliber bullet is larger in diameter and heavier than a 9mm bullet.
There are SEVERAL 9mm cartridges- the most common is probably the 9mm Parabellum (9mm Luger). A 9mm Parabellum BULLET (not cartridge) is typically slightly smaller than a .38 Special bullet- .356 instead of .357. The 9mm is frequently (not always) lighter- and shorter. Other 9mm cartridges (such as the 9mm Makarov) will have different bullets.
No
380 and 9mm ammunition IS NOT INTERCHANGEABLE.
No, the bullet will not seat.
The 9mm round in loaded with a bullet diameter of .356"in.
The .22 bullet is smaller than the 9mm in size, (about 6mm) and is lighter in weight.
When you shoot a bullet the bullet casing pos out through the ejector and that is where the bullet is and gunpowder to fire it.
any weapon that can fire the 9mm cartridge................