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.30 R Blaser
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.
==Design==
The cartridge is a de novo design and was constructed to outperform popular hunting cartridges like the .30-06 Springfield and 7.92×57mm Mauser. When compared with the .30-06 Springfield the .30 R Blaser features an equal maximum chamber pressure of 405 MPa (58,740 psi) piezo pressure - which is fairly high for a rimmed rifle cartridge - but more cartridge case capacity, allowing the use of more propellant. The .30 R Blaser performance does however not reach the power level of .30 caliber magnum cartridges like the .300 Winchester Magnum that feature more cartridge case capacity and higher maximum chamber pressure levels.
As a rimmed cartridge 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.
The cartridge was commercially introduced in 1992 by Blaser Jagdwaffen (Blaser hunting weapons) and RWS ammunition. Since then other rifle and ammunition manufacturers have included the .30 R Blaser in their product ranges.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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