The Weatherby Select Plus Barnes TTSX load pairs a 185-grain Barnes TTSX projectile with the .338 WBY RPM cartridge to deliver high-energy performance appropriate for large-game hunting and extended-range work in a precision magnum platform. The 338 WBY RPM was developed to maximize magnum performance in lightweight Mark V-style actions while retaining efficient long-range ballistics. This load is supplied in 20-round boxes for retail sale and is intended for informed shooters seeking a premium factory hunting/precision load.
Packaging: The product is sold per box containing 20 rounds. A case quantity is available and is achieved by ordering 10 boxes (200 rounds total) as indicated in the product listing.
Key Specifications
- The cartridge is chambered in .338 WBY RPM.
- The bullet weight is 185 grains.
- The projectile type is a Barnes TTSX.
- The listed velocity is 3100 fps.
- The retail packaging is 20 rounds per box.
- The case quantity is 10 boxes (200 rounds).
- The load is offered under Weatherby’s Select Plus line.
- The cartridge family was introduced in 2022 for lightweight magnum platforms.
- The case design features a large body diameter and 35-degree shoulder for increased powder capacity.
This factory-loaded Weatherby Select Plus round delivers a proven Barnes TTSX hunting projectile and the magnum performance expected from the .338 WBY RPM package in a convenient 20-round box. Specify this load when you require a premium, factory-built option for large-game field work and precision magnum performance from a lightweight rifle platform.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.




