ⓘ 5.6×57mmR. The 5.6×57mmR cartridge was created by Rheinisch-Westfalische Sprengstoffwerke in Germany for hunting small deer. ..

                                     

ⓘ 5.6×57mmR

The 5.6×57mmR cartridge was created by Rheinisch-Westfalische Sprengstoffwerke in Germany for hunting small deer.

                                     

1. 5.6×57mm rimless variant

The 5.6×57mm designated as the 5.6 × 57 by the C.I.P. is a rimless variant of the 5.6×57mmR. The rimmed variant was designed for break-open rifles and is almost identical to the rimless variant except for the rim.