HSM Ammunition Game King 7mm Remington Magnum 160 Grain Spitzer Boat Tail Brass Cased Rifle Ammo 20 Rounds. Now HSM has developed an entire lineup of fine hunting ammunition featuring the time-honored Sierra GameKing/Pro-Hunter bullets. Each caliber's individual components have been precisely matched to each GameKing/Pro-Hunter bullet to maximize their potential for accuracy and performance. Specifications for HSM Ammunition Game King 7mm Remington Magnum 160 Grain Spitzer Boat Tail Brass Cased Rifle Ammunition: Manufacturer: HSM Ammunition Caliber: 7mm Remington Magnum Number of Rounds: 20 Bullet Type: Spitzer Boat Tail (SBT) Bullet Weight: 160 grain Cartridge Case Material: Brass Muzzle Velocity: 2786 ft/s Application: Hunting Primer Style: Centerfire What is HSM Ammunition Game King 7mm Remington Magnum 160 Grain Spitzer Boat Tail Brass Cased Rifle Ammunition good for? The manufacturer thinks that it is best for hunting.HSM Ammunition 7MMMAG6N: Game King 7mm Remington Magnum 160 Grain Brass Cased Rifle Ammo 20 Rounds