914 mm artillery

The term "914 mm artillery" typically refers to large-caliber artillery pieces designed to fire projectiles at long ranges. Specifically, the 914 mm caliber is most famously associated with the **Karl-Gerät** (or "Karl device"), a series of German siege mortars used during World War II. The Karl-Gerät was designed to breach fortifications and was notable for its enormous size and firepower. Its primary purpose was to destroy heavily fortified positions.