Weatherby Select Plus 338-378 Magnum 225gr TTSX

Weatherby Select Plus 338-378 Magnum Ammunition

The 338-378 Weatherby Magnum represents the pinnacle of long-range big game hunting cartridges. Originally introduced as a Weatherby wildcat in the 1960s and reestablished as a production cartridge in 1998, this round delivers exceptional velocity and power in a flat-shooting package.

Performance Specifications

• Caliber: 338-378 Weatherby Magnum
• Bullet Weight: 225 grains
• Bullet Type: Barnes TTSX (Tipped Triple-Shock X)
• Muzzle Velocity: 3180 feet per second
• Muzzle Energy: 5052 foot-pounds
• Ballistic Coefficient: .514
• Quantity: 20 rounds per box

Why Select Plus?

Weatherby Select Plus ammunition combines the company's magnum cartridge expertise with premium bullet technology from industry leaders. The Barnes TTSX bullet is a lead-free design engineered for deep penetration, consistent expansion, and maximum energy transfer on game.

This cartridge excels at extended ranges where its flat trajectory and retained energy make the difference between a clean harvest and a lost opportunity. The combination of Weatherby's case design and Barnes bullet construction creates ammunition worthy of the 338-378's reputation as one of the most powerful and accurate magnum cartridges available.

Ideal for: Long-range hunting of large game species where maximum power and accuracy are essential.