Do you need a hunting license for a 999 fps gun?
It's a pellet gun
If you plan on hunting with it ... yeah.A hunting license isn't about the method you hunt with ... it's about paying "the state" for the priviledge of hunting their animals.
If you are going to hunt.
It varies from state-to-state, but to buy a pellet gun that shoots over 1000 fps may require a gunowner's ID.