Weatherby Select Plus Barnes TTSX Rifle Ammunition .338 WBY RPM 225gr PT 2800 fps 20/ct
$95.69
Weatherby Select Plus .338 WBY RPM 225gr Barnes TTSX ammo delivers magnum power for taking down big game. 20 rounds, 2800 fps.
Out of stock
Introduced in 2022 the 338 WBY RPM (rebated precision magnum) maximizes the magnum potential of the lightweight Mark V 6 Lug action. The goal was to fit a large caliber bullet into a lightweight backcountry rifle that could take down all of North America’s big game. The 338 RPM is based off of the 6.5 RPM necked up to accept a .338 caliber bullet. The case features a large body diameter low body taper and 35-degree shoulder creating a larger powder capacity leading to higher velocities.
| Weight | 1.605 lbs |
|---|---|
| Dimensions | 6.000 × 3.750 × 1.380 in |
| Manufacturer | Weatherby Ammunition |
| Caliber | .338 WBY RPM |
| Bullet Weight | 225gr |
| Velocity | 2800 fps |
| Rounds Per Box | 20 |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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