Winchester Short Magnum .300 Remington Short Action Ultra Magnum .300 Remington Ultra Magnum 7 mm caliber Table of handgun and rifle cartridges Winchester Model 70 References The .300 Holland & Holland Magnum by Chuck Hawks (subscription req) External links The .300 H&H Magnum by Chuck Hawks Pistol and rifle cartridges Holland & Holland cartridges British firearm cartridges