Some pump action shotguns that lack trigger disconnects, such as the Winchester 1897 "trench sweeper", are capable of firing multiple shots if the action is operated while the trigger is depressed.

According to the FCA:

A “fully automatic firearm” is one “capable of discharging more than one shot with a single depression of the trigger.”

Does this definition render any shotgun which is capable of performing an intended slamfire a 'fully automatic firearm' in terms of the Act?

Thanks.