In the late 1920s, the standard service cartridge in Swedish use was the 6.5×55mm Swedish skarp patron m/94 projektil m/94 (live cartridge m/94 projectile m/94) service ammunition loaded with a 10 grams long round-nosed m/94 (B-projectile) bullet which was not considered effective enough for anti-aircraft and indirect fire so the Royal Swedish Army Materiel Administration tasked AB Bofors to manufacture a larger rifle cartridge to meet these needs.