If it has no chokes, then no.
Also if it's a German made shotgun such as this 1937 made 12 gauge (2 3/4") B.S.W scalloped boxlock ejector (basically a Nazi era Simpson)... Then, it's 99% of the time actually regulated to produce fairly accurate groups out to 40-45 yards with German Brenneke Original style slugs. Same goes with the French Robust shotguns that were made by Manu-France.
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But Spanish, English, Belgian, Italian and American side by side shotgun manufacturers (such as AyA, Westley Richards, Auguste Francotte, Beretta and Savage) almost always discourage the use of slugs in their choked shotgun barrels. And I know of at least one double barreled side by side shotgun from each of the aforementioned companies which had a barrel bulge due to firing slugs.