Weatherby Select Plus 30-378 Wthby Mag 220 Gr Hornady ELD-X 20 Bx/. It's the flattest shooting hardest hitting most accurate ammo you can buy. It pairs our magnum design with the most popular bullet offerings from Barnes Hornady Swift Berger and Nosler. With Select Plus there's a bullet option to meet every hunting or shooting situation. Specifications for Weatherby H303220ELDX Select Plus 30-378 Wthby Mag 220 Gr Hornady ELD-X 20 Bx/: Manufacturer: Weatherby Caliber: .30-378 Weatherby Magnum Number of Rounds: 20 Bullet Type: Spitzer Boat Tail (SBT) Bullet Weight: 220 grain Cartridge Case Material: Brass Primer Style: Centerfire