Sven Åderman was a Swedish inventor and officer who created a musket capable of firing more rapidly than conventional weaponry of the late 17th century. This new musket was first used in the wars of King Karl XII. For his efforts King Frederick I of Sweden bestowed upon him the estate of Halltorp in the year 1723. At this time Åderman was a major. Halltorp had been a royal hunting farm belonging to the Swedish Crown for centuries.