.50 BMG Unprimed Brass Cases (Box of 25)

The demanding production procedure ensures the recognised high quality standard of RWS cartridge cases is maintained. Brass strip for case production is supplied in reels and only accepted after detailed metallurgical analysis in our laboratory. Brass cups are formed from the strip using stamping pressures of 150 tons and then these are drawn through several processes to form the finished case. The developing cases are repeatedly annealed, pickled and washed and this improves the grain structure of the material which helps the cases withstand the gas pressure with an optimum obturation. It also becomes an ‚intelligent‘ material that expands in response to the increased pressure and then returns to its original condition.