The 6.5x68mm rimless bottlenecked rifle cartridge (also incorrectly known as the 6.5x68mm RWS, 6.5x68mm Schüler or the 6.5x68mm Von Hofe Express) and its sister cartridge the 8x68mm S were developed in the 1930s by Mr. Schüler from the August Schüler Waffenfabrik, Suhl, Germany as magnum hunting cartridges that would just fit and function in standard sized Mauser 98 bolt action rifles. This is one of the early examples where a de novo rifle cartridge (the 6.5x68mm and 8x68mm S have no other cartridge as parent case) was developed by a gunsmith to fit a specific popular and widespread type of rifle.