Weatherby Select Plus .338 WBY RPM 185gr Barnes TTSX
Weatherby Select Plus ammunition in .338 WBY RPM with 185-grain Barnes TTSX bullets. Engineered for the Mark V 6 Lug action, delivering 3,100 fps for North American big game hunting.
Weatherby Select Plus .338 WBY RPM Ammunition
Purpose-Built for Modern Magnum Hunting
Introduced in 2022, the .338 WBY RPM (Rebated Precision Magnum) represents a significant advancement in magnum rifle design. This cartridge was engineered to maximize the potential of Weatherby's lightweight Mark V 6 Lug action—delivering magnum performance in a rifle light enough for serious backcountry hunting.
Cartridge Design
The .338 WBY RPM is based on the 6.5 RPM case, necked up to accommodate .338 caliber bullets. The case design features:
- Large body diameter for increased powder capacity
- Low body taper for efficient case utilization
- 35-degree shoulder that enhances powder burn and velocity
This geometry creates a larger internal volume, allowing higher velocities while maintaining safe pressures in the lightweight action.
Ammunition Specifications
Weatherby Select Plus loads this cartridge with 185-grain Barnes TTSX bullets—premium, all-copper projectiles known for consistent expansion and deep penetration. The ammunition achieves a muzzle velocity of 3,100 feet per second, providing the energy needed for ethical, effective hunting of North American big game.
Ideal For
This ammunition is purpose-built for hunters who demand:
- Lightweight, packable rifles for mountain hunting
- Magnum performance without excessive recoil
- Reliable, ethical terminal ballistics on elk, moose, and other large game
20 rounds per box | 10 boxes per case
Features
- barnes ttsx
