Would that include a revolver that can fire shotgun ammo:
MODEL 4510 .45/.410
And if a five shot revolver is now an "assault" weapon, what about higher-capacity revolvers?
This is Schumer logic.
That’s interesting....Since .410 shotguns, are the only gauge of shotgun that is listed by actual caliber.(41 caliber)
It must be that the lands and the rifling are .410 and the free-bore is .45 caliber.
Modern shot sleeves will also form well to the irregularities of a rifled barrel I suppose.