A projectile casing (2) with a casing body (4) bordering an interior (6) with at least one predetermined breaking point (10) for weakening and decomposing into fragments (12) is produced by 3D printing and the predetermined breaking point (10) is formed in that the starting material (16) is not or less solidified and / or less or no starting material (16) is present, the enveloping body (4) having a continuous inner wall (20) and / or outer wall (22) at the predetermined breaking point (10). In a method for producing the projectile casing (2), the starting material (16) is provided and the casing body (4) is produced by means of 3D printing, the predetermined breaking point (10) being formed as described, and a continuous inner wall at the predetermined breaking point (10) (20) and / or outer wall (22) is produced.
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