This is a list of firearm cartridges which have bullets in the caliber range. Length refers to the cartridge case length. OAL refers to the overall length of the cartridge. All measurements are in mm (in). Pistol cartridges Revolver cartridges Rifle cartridges 6.8 mm (.277 in) rifle cartridges (commonly known as .270 or 6.8 mm) 7.0 mm (.284 in) rifle cartridges (commonly known as 7mm) 7.8 mm (.308 in) rifle cartridges (commonly known as .308, 30 caliber, 7.62 mm) 7.87 mm (.310 in) and greater rifle cartridges References Barnes, Frank C., ed. Amber, John T., Cartridges Of The World (3rd Edition), (DBI, 1978), External links 7mm Cartridge Guide from AccurateShooter.com Rifle Shooter Mag article on 7 mm cartridges Pistol and rifle cartridges