Cotton test fires the .277 Wolverine from an AR pistol. The .277 Wolverine cartridge, developed by Mad Dog Weapon Systems, utilizes 5.56 cases and 6.8 projectiles in various weights.
Cotton test fires the .277 Wolverine from an AR pistol. The .277 Wolverine cartridge, developed by Mad Dog Weapon Systems, utilizes 5.56 cases and 6.8 projectiles in various weights.