.600/577 Rewa

750 gr (49 g) 2,150 ft/s (660 m/s) 7,697 ft⋅lbf (10,436 J) | 750 gr (49 g) | 2,150 ft/s (660 m/s) | 7,697 ft⋅lbf (10,436 J) | | 750 gr (49 g) | 2,150 ft/s (660 m/s) | 7,697 ft⋅lbf (10,436 J) | | | Sources: The Spanish Association of Cartridge Collectors &Czech Moravian Society of Collectors of Cartridges | | | |

The .600/577 Rewa, also known as the .600/577 Rewa Nitro Express, Holland's .600/577 and the .577 Rewa, is an obsolete big bore rifle cartridge.

The .600/577 Rewa was developed and introduced by Holland & Holland in 1929 by a special order for Martand Singh, Maharaja of Rewa.

The .600/577 Rewa is a rimmed, bottlenecked centerfire rifle cartridge. The .600/577 Rewa is derived from the .600 Nitro Express necked down to accept the .582 in (14.8 mm) calibre bullet of the .577 Nitro Express. The .600/577 Rewa fires a 750 gr (49 g) bullet driven by 110 gr (7.1 g) of cordite.

Always rare, the .600/577 Rewa was produced by Holland & Holland until 1957, although it can still be purchased from Kynoch.

• 13 mm caliber

• Nitro Express

• List of rifle cartridges

• List of rimmed cartridges

• Royal Armouries, "Centrefire rifle proof cartridge - .577 in Rewa by Kynoch", collections.royalarmouries.org, retrieved 15 June 2018.