The .30 R Blaser is a rimmed bottlenecked centerfire cartridge developed for hunting in 1991 by Gerhard Blenk, the then owner of Blaser Jagdwaffen GmbH and Dynamit Nobel which then owned RWS ammunition. As a rimmed cartidge the .30 R Blaser is designed for use in break action rifles such as double rifles and combination guns as well as for single shot rifles such as the falling block action rifles. Break action rifles using rimless .30 caliber chamberings like .308 Winchester or .30-06 Springfield can be fairly easy rechambered for the .30 R Blaser.