Buffalo Bore Ammunition Supercharged 308 Win 150 Gr Barnes Tipped TSX Le. Buffalo Bore produces strictly big bore ammo with massive firepower and dramatic results. Popular calibers include: 45-70 Magnum Lever gunheavy .444 Marlin Heavy 38-55 WinchesterHeavy 348 Winchester50 Alaskan Heavy 35 Remington Sniper 223 Remington Sniper 308 Winchester Heavy 450 Marlin Heavy 30/30. Specifications for Buffalo Bore Ammunition 39B/20 Supercharged 308 Win 150 Gr Barnes Tipped TSX Le: Manufacturer: Buffalo Bore Ammunition Caliber: .308 Winchester Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 150 grain Cartridge Case Material: Brass Muzzle Velocity: 2900 ft/s Application: Hunting Primer Style: Centerfire What is Buffalo Bore Ammunition 39B/20 Supercharged 308 Win 150 Gr Barnes Tipped TSX Le good for? The manufacturer suggests that it is good for hunting.