You’re talking about simulating the flight of the bullet over time. You don’t need to do that if all you want to simulate are the effects of gravity, wind, and

You’re talking about simulating the flight of the bullet over time. You don’t need to do that if all you want to simulate are the effects of gravity, wind, and distance on the bullet. You can pre-compute all of those things and simply add a delay based on the distance and muzzle velocity. Sure, if you’re interested in simulating the effects of rifling and turbulence on the bullet, then you’re getting into fluid mechanics where the temperature and composition of the atmosphere make a difference. That seems like overkill for a game.