The Sjögren Inertia is a 12 gauge semi-automatic shotgun designed by Swedish inventor Carl Axel Theodor Sjögren produced from 1908 to 1909. It used an inertia system later revived by the Italian firm Benelli and today widely used in shotguns. The shotgun had limited service in World War I by both the Allies and the Central Powers.
— In-Game Description
The Sjögren Inertial (also referred to as the Sjögren Inertial Shotgun) is a semi-automatic shotgun introduced in the Battlefield 1: They Shall Not Pass expansion for the Assault class. It is unlocked upon obtaining 50 kills with the Model 10-A Slug and obtaining 15 kills with the M97 Trench Gun Hunter in a single round. The Sjögren is available as a Factory or Slug variant.
Stats wise, the Sjögren Inertial has lower maximum damage (as well as lower minimum damage) than both pump-action shotguns. In this respect, it can be seen as a compromise between the faster fire rate of the 12g Automatic and the higher damage of the pump-action shotguns. Unlike the 12g Auto, the Sjögren Inertial can kill on one shot at close ranges.
— In-game description
The Sjögren Shotgun is a weapon featured in Battlefield V. The Sjögren first appeared in both the 'The Company' and This is Battlefield V trailers, and was planned to be usable in the cut 5v5 Gamemode. It was made available in-game in the Battlefield V: Summer Update, and is obtainable for players who login to the game after the update. The weapon is also available to unlock using Company Coins.
Statistically, the Sjögren is almost identical to the M1897, featuring the same damage model, ammunition capacity, velocity and spread. Its primary difference are its higher rate of fire, which despite its semi-automatic function makes it only the second slowest firing in its class, and its magazine, is the same practical size but with a +1 capacity which increases the time needed for an empty reload.
The Sjögren's Specialization tree is again similar to the M1897, but with notable exceptions. While it has access to both the Heavy Load and Slugs at Rank 2, which as expected are identical in performance to upgrades on the M1897, the rank 3 Solid Slug specialization is replaced with Enhanced Grips which significantly decreases spread, making the Sjögren the most accurate shotgun to use Slugs with. The bayonet attachment is further replaced with Quick Reload, which can offset the Sjögren's longer reload times. The alternative rank 4 upgrade of Trigger Job increases fire rate to 138 RPM - putting it on par with the 12g Automatic.