Weatherby Select Plus .300 Magnum 170 Grain Hammer Custom Brass Cased Centerfire Rifle Ammo 20 Rounds. Based on the 300 H&H Magnum the 300 Weatherby delivers 300 more fps than its British cousin. Introduced in 1944 this is the all-around cartridge for the big game hunter. Specifications for Weatherby Select Plus .300 Magnum 170 Grain Hammer Custom Brass Cased Centerfire Rifle Ammunition: Manufacturer: Weatherby Caliber: .300 Weatherby Magnum Number of Rounds: 20 Bullet Type: Boat Tail Hollow Point (BTHP) Bullet Weight: 170 grain Cartridge Case Material: Brass Application: Hunting Package Type: Box Included Accessories: None Primer Style: Centerfire Features of Weatherby Select Plus .300 Magnum 170 Grain Hammer Custom Brass Cased Centerfire Rifle Ammunition: 170 grain Hammer Custom bullet 3300 fps 20 Rounds per box Package Contents: Weatherby Select Plus .300 Magnum 170 Grain Hammer Custom Brass Cased Centerfire Rifle Ammunition What is Weatherby Select Plus .300 Magnum 170 Grain Hammer Custom Brass Cased Centerfire Rifle Ammunition good for? The manufacturer suggests that it is suitable for hunting.Weatherby M300170HCB: Select Plus .300 Magnum 170 Grain Hammer Custom Brass Cased Centerfire Rifle Ammo 20 Rounds