How much gunpowder does an average bullet have?

The amount of gunpowder in an average bullet varies depending on the type and caliber of the cartridge. Typically, a standard centerfire bullet contains about 3 to 5 grains of smokeless powder, which translates to roughly 0.2 to 0.3 grams. Rimfire cartridges may have slightly less. Overall, the specific amount can differ based on the bullet's design and intended use.