|Place of origin||United Kingdom|
|Designer||Holland & Holland|
|Parent case||.297/230 Morris|
|Case type||Rimmed, bottleneck|
|Bullet diameter||.250 in (6.4 mm)|
|Neck diameter||.267 in (6.8 mm)|
|Shoulder diameter||.294 in (7.5 mm)|
|Base diameter||.295 in (7.5 mm)|
|Rim diameter||.343 in (8.7 mm)|
|Case length||.83 in (21 mm)|
|Overall length||1.1 in (28 mm)|
|Primer type||Kynoch # 69|
|56 gr (4 g)
||1,100 ft/s (340 m/s)
||150 ft⋅lbf (200 J)
|Source(s): Cartridges of the World, & Modern sporting gunnery.|
The .297/250 Rook is an obsolete centerfire rifle cartridge developed by Holland & Holland.
The .297/250 Rook is a bottlenecked rimmed cartridge originally designed for use in rook rifles for hunting small game and target shooting.
This cartridge was introduced by Holland & Holland some time before 1880 by blowing out the neck of the .297/230 Morris Long to .250 in (6.4 mm). This cartridge is a contemporary of the .255 Jeffery Rook and upon their release the pair competed heavily with the very popular .300 Rook.
As with other rook rifle cartridges, the .297/250 Rook was superseded by the .22 Long Rifle.
Eley's .297/250 Rook rifle cartridge.
- ^ a b Barnes.
- ^ Sharp.
- ^ Imperial War Museums, ".297/250 Rook".
- ^ Imperial War Museums, ".300 Rook".
- ^ Cartridgecollector.
- Barnes, Frank C., Cartridges of the World, 15th ed, Iola: Gun Digest Books, 2016, ISBN 978-1-4402-4642-5.
- Cartridgecollector, ".300 Rook target", cartridgecollector.net, retrieved 22 April 2017.
- Imperial War Museums, "6.35 x 20.5R : Kynoch ; .297/.250 Rook Rifle", iwm.org.uk, retrieved 22 April 2017.
- Imperial War Museums, "7.62 x 29.5R : Kynoch ; .300 Rook Rifle & .295 Rook Rifle", iwm.org.uk, retrieved 22 April 2017.
- Sharp, Henry, Modern sporting gunnery: A manual of practical information for shooters of today, London: Simpkin, Marshall, Hamilton, Kent & Co. Ltd, 1906.