HSM Ammunition Tipping Point Sierra GameChanger .270 Winchester 140 Grain Spitzer Boat Tail Brass Cased Rifle Ammo 20 Rounds. That describes HSMs Tipping Point to a T. Match grade accuracy combined with a payoff of extreme terminal results. Specifications for HSM Ammunition Tipping Point Sierra GameChanger .270 Winchester 140 Grain Spitzer Boat Tail Brass Cased Rifle Ammunition: Manufacturer: HSM Ammunition Caliber: .270 Winchester Number of Rounds: 20 Bullet Type: Spitzer Boat Tail (SBT) Bullet Weight: 140 grain Cartridge Case Material: Brass Muzzle Velocity: 2988 ft/s Application: Medium Game Primer Style: Centerfire What is HSM Ammunition Tipping Point Sierra GameChanger .270 Winchester 140 Grain Spitzer Boat Tail Brass Cased Rifle Ammunition good for? The manufacturer thinks that it is best for medium game.HSM Ammunition 27016N: Tipping Point Sierra GameChanger .270 Winchester 140 Grain Brass Cased Rifle Ammo 20 Rounds