.297/250 Rook
Centerfire rifle cartridge
From Wikipedia, the free encyclopedia
The .297/250 Rook / 6.4x21mmR is an obsolete centerfire rifle cartridge developed by Holland & Holland.
| .297/250 Rook | ||||||||
|---|---|---|---|---|---|---|---|---|
| ||||||||
| Type | Rifle | |||||||
| Place of origin | United Kingdom | |||||||
| Production history | ||||||||
| Designer | Holland & Holland | |||||||
| Designed | Pre-1880s | |||||||
| Specifications | ||||||||
| 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 | |||||||
| Ballistic performance | ||||||||
| ||||||||
| Sources: Cartridges of the World,[1] & Modern sporting gunnery.[2] | ||||||||
Overview
The .297/250 Rook is a bottlenecked rimmed cartridge originally designed for use in rook rifles for hunting small game and target shooting.[1]
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).[3] This cartridge is a contemporary of the .255 Jeffery Rook and upon their release the pair competed heavily with the very popular .300 Rook.[4]
As with other rook rifle cartridges, the .297/250 Rook was superseded by the .22 Long Rifle.[5]
Eley's .297/250 Rook rifle cartridge.
Dimensions
