Cartridge – Year Introduced Commercially:
.220 Rocket Magnum – 1945
.224 Weatherby Magnum – 1964
.228 Weatherby Magnum – 1947
.240 Weatherby Magnum – 1968
.257 Weatherby Magnum – 1945
6.5 Weatherby RPM – 2019
6.5-300 Weatherby Magnum – 2016
.270 Weatherby Magnum – 1945
7MM Weatherby Magnum – 1947
.300 Weatherby Magnum – 1945
.30-378 Weatherby Magnum – 1996
.340 Weatherby Magnum – 1963
.338-378 Weatherby Magnum – 1998
.375 Weatherby Magnum – 1947
.378 Weatherby Magnum – 1956
.416 Weatherby Magnum – 1989
.460 Weatherby Magnum – 1959