| .297/250 Rook | |
| Origin: | United Kingdom |
| Type: | Rifle |
| Designer: | Holland & Holland |
| Design Date: | Pre-1880s |
| Parent: | .297/230 Morris |
| Case Type: | Rimmed, bottleneck |
| Bullet: | .250 |
| Neck: | .267 |
| Shoulder: | .294 |
| Base: | .295 |
| Rim Dia: | .343 |
| Case Length: | .83 |
| Length: | 1.1 |
| Primer: | Kynoch # 69 |
| Bw1: | 56 |
| Vel1: | 1100 |
| En1: | 150 |
| Balsrc: | Cartridges of the World,[1] & Modern sporting gunnery.[2] |
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.[3]
This cartridge was introduced by Holland & Holland some time before 1880 by blowing out the neck of the .297/230 Morris Long to 0.25inches.[4] This cartridge is a contemporary of the .255 Jeffery Rook and upon their release the pair competed heavily with the very popular .300 Rook.[5]
As with other rook rifle cartridges, the .297/250 Rook was superseded by the .22 Long Rifle.[6]