The .360 Rook cartridge, also known as .360 Rook Rifle, is a small-caliber round that originated in the late 19th century. It was primarily used in rook rifles, which were small, single-shot, break-action firearms originally designed for recreational shooting, small game hunting, and pest control. The cartridge typically features a straight-walled, rimmed design, and commonly fires a lead bullet weighing between 100 and 125 grains.
Its performance is modest, with relatively low velocities and energies compared to modern cartridges, which makes it suitable for short-range shooting and minimal recoil. While it has been largely obsolete for many decades and replaced by more modern ammunition, the .360 Rook holds historical significance and is still of interest to collectors and enthusiasts of vintage firearms.
Use cases included shooting small game such as rooks (hence the name), rabbits, and other small varmints. Enthusiasts of traditional British hunting culture may also appreciate it for its historical context.