That's not a bullet. It is a button on the guy's shirt in the background. The bullet is long gone (tip of the Hatlo Hat to QuackQuack, below). The immediate tip-off is that it is not aligned with the axis of the barrel, does not look like a bullet, and has no velocity smear. There are no "sparks" and "smoke." We are no longer using flintlock firearms with black powder. The bullet is traveling in the vicinity of 1000 feet/second. The casing at maybe tens of feet/second. Just fast enough to smart if it ejects with a backward slant and hits you in the forehead.