.577 Nitro Express is pronounced ''five seventy-seven Nitro Express''.
This caliber may also be known as '''.577 Nitro''', '''.577 NX'''(for '''N'''itro e'''X'''press), or just '''.577'''. There is no formal metric designation for this caliber, but if one existed, it would likely be '''14.6x76mm R'''.
= Compatibility =