The 6.8 Western is a relatively new rifle cartridge introduced by Winchester. It was designed for long-range hunting and shooting applications, and it offers a balance between bullet weight, velocity, and recoil. Here are some key characteristics and details about the 6.8 Western cartridge:

Cartridge Dimensions: The 6.8 Western is based on a shortened and necked-down version of the .270 Winchester Short Magnum (.270 WSM) case. It has a rebated rim design, which means the rim diameter is smaller than the case body diameter.

Bullet Diameter: The 6.8 Western typically uses .277-inch (6.8mm) diameter bullets, which is similar to the popular .270 caliber cartridges.

Performance: The 6.8 Western cartridge is designed to provide flat trajectories and high downrange energy, making it suitable for long-range shooting and hunting. It achieves this performance by launching heavy-for-caliber bullets at relatively high velocities.

Versatility: It is versatile enough to be used for various game animals, including deer, elk, and other large game, making it a good choice for hunters pursuing a range of species.

Recoil: While the 6.8 Western generates recoil, it is generally manageable for most shooters, especially those who are experienced with magnum-caliber rifles.

Availability: The 6.8 Western is a new cartridge, and firearm manufacturers are starting to chamber rifles for it. Ammunition availability might have been limited at this time, but it was expected to grow as the cartridge gaines popularity.

Please note that firearm and ammunition offerings can change, and it's a good idea to check with firearm manufacturers and ammunition suppliers for the latest information on the 6.8 Western cartridge, including any new rifles chambered for it and the availability of ammunition.