Buy 7mm-08 Ammo OnlineThe 7mm-08 Remington is usually a rifle cartridge that is almost a direct copy of a wildcat cartridge formulated close to 1958 often known as the 7mm/308. As these names would suggest, it is the .308 Winchester situation necked down to just accept 7 mm (.284) bullets with a small rise in scenario size. Of cartridges dependent