The medium designs offered greater flexibility, either using a bipod and being used like lighter designs, or being put on a tripod, or on heavier mounts. The Hotchkiss Mark I (e.g. Benét–Mercié M1909) was a 27.6 lb (12.2 kg) MG that normally used a mini tripod and linkable 30-round strips or in vehicles, but there was also a belt-fed version of it. Not be confused with heavier Hotchkiss models (such as the M1914), the design proved a useful intermediate and would serve even to the end of World War II in some jobs. The design would be followed by lighter machine rifles and better medium types. They also shared a common characteristic: they fired full power rifle caliber ammunition such as 8mm Mauser or .30-06 Springfield.