The .360 No. 5 Rook / 9.2x27mmR is an obsolete centerfire rifle cartridge.

The .360 No. 5 Rook is a straight rimmed cartridge originally designed for hunting small game and target shooting in rook rifles, although it was also used as a pistol cartridge.^[1]

The .360 No. 5 Rook was introduced between 1875 and 1880 by lengthening the older .380 Long cartridge.^[2] This cartridge was initially available in both 134 gr (8.7 g) rifle loadings and 125 gr (8.1 g) pistol loadings, both cartridges being interchangeable.^[2] Shot and blank cartridges were also available.^[1]

As with other rook rifle cartridges, the .360 No. 5 Rook was superseded as a small game hunting and target cartridge by the .22 Long Rifle.^[3]

• 9 mm rifle cartridges
• List of rifle cartridges
• List of rimmed cartridges
• Rook rifle

• Barnes, Frank C., Cartridges of the World, 15th ed, Gun Digest Books, Iola, 2016, ISBN 978-1-4402-4642-5.
• Cartridgecollector, ".300 Rook target", cartridgecollector.net, retrieved 22 April 2017.
• Imperial War Museums, "9.1 x 27R : Kynoch; .360 No 5 Rook & .360 No 5 Revolver", iwm.org.uk, retrieved 26 April 2017.

• Ammo-One, ".360 No. 5 Rook", ammo-one.com, retrieved 22 April 2017.
• Cartridgecollector, " 360 No.5 (Rifle) 1.05" ", cartridgecollector.net, retrieved 26 April 2017.
• Municion, ".360 No 5 Revolver & Rifle", municion.org Archived 2017-04-26 at the Wayback Machine, retrieved 26 April 2017.