Buy 7mm-08 Ammo OnlineThe 7mm-08 Remington can be a rifle cartridge that is nearly a immediate copy of the wildcat cartridge formulated close to 1958 called the 7mm/308. As these names would suggest, it is the .308 Winchester case necked down to simply accept 7 mm (.284) bullets with a little boost in scenario size. Of cartridges based on the .308,