both weapon systems. See also 7 mm caliber References Hatcher's Book of the Garand. Julian S. Hatcher Cartridges of the World. Frank C. Barnes. Handloader's Manual of Cartridge Conversions. Donnelly + Townsend Guns. Chris McNab Book of Combat Arms 2005. Guns and Ammo Magazine Various articles in The American Rifleman. RifleShooter and Guns and Ammo magazines. External links patent Pistol and rifle cartridges Experimental cartridges