Winchester and Browning's 2021 collaboration designed specifically for heavy, high-BC .277-caliber bullets. Delivers magnum-class long-range performance in a short-action package.
Type: Rifle
Introduced: 2021, United States
Parent case: .270 WSM
Standardization: SAAMI
Bullet diameter: 0.277" (7.04 mm)
Case length: 2.02" (51.31 mm)
Overall length: 2.955" (75.06 mm)
Max pressure: 65,000 PSI
Rim type: Rebated
Primer: Large Rifle Magnum
Typical twist rate: 1:8
Muzzle velocity: 2700–2970 fps
Muzzle energy: 2622–3231 ft-lbs
Effective range: 1000 yd
Common bullet weights: 162, 165, 170 gr
Primary use: Hunting, Target
Production status: Active
Also known as: 6.8 West · 6.8 Win Western
History: Introduced jointly by Winchester and Browning Arms in 2021 specifically for the Browning X-Bolt and Winchester Model 70. The design goal was a short-action cartridge capable of launching the heaviest .277-caliber bullets — 162 to 170 grains — at velocities sufficient for long-range big game hunting. The 1:8 twist rate stabilizes bullets that traditional .270 Winchester and .270 WSM rifles can't…
Notable firearms: Browning X-Bolt Pro, Winchester Model 70, Savage 110 Hunter, Browning AB3
Similar cartridges: .270 WSM, .280 Ackley Improved, 7mm PRC