smokeless ammunition in the following categories: 1. American single-shot rifle 2. American lever-action rifle 3. American double-action revolver 4. American single-action revolver 5. American double-barrel shotgun 6. European bolt-action rifle 7. European double-barrel shotgun 8. European pistol of any design I'm certain that when auto handguns, auto rifles, submachine guns, auto shotguns and over/under shotguns came out they were pretty much all smokeless by then. I doubt if there were any black powder pump shotguns and rifles. I would say that the transition to smokeless powders was the single greatest milestone in firearms history.