Weatherby .338-378 Weatherby Magnum ammunition (part no. B333225TTSX) loads a 225-grain Barnes Triple-Shock X Boat Tail for dangerous-game hunters taking on the world’s largest, most heavily boned animals. Weatherby built its name on high-velocity magnum cartridges, and its factory ammunition is loaded to the same demanding standard as its rifles. The all-copper hollow point petals peel back on impact for a wide wound channel while the bullet retains close to 100 percent of its weight for deep penetration. Brass-cased and 20 to a box, it is built to feed reliably through bolt guns and semi-autos chambered for the cartridge. In our rifle ammunition lineup, this .338-378 Weatherby Magnum loading is a confirmed, dependable choice worth adding to the cart.

Key Specifications

• The chambering is .338-378 Weatherby Magnum, a hard-hitting .338-class Weatherby magnum built on the oversized .378 case for extreme velocity.
• The bullet weighs 225 grains, setting the balance of velocity and downrange energy this load is tuned for.
• The bullet is a Barnes Triple-Shock X Boat Tail, the projectile Weatherby chose to load behind .338-378 Weatherby Magnum.
• The all-copper hollow point petals peel back on impact for a wide wound channel while the bullet retains close to 100 percent of its weight for deep penetration.
• The projectile is lead-free, making the load compliant in California and other jurisdictions that require nontraditional bullets.
• Cases are Brass, holding pressure reliably and staying reloadable for handloaders.
• Each box holds 20 rounds, enough to confirm zero and still have rounds on hand.
• At about $6.93 per round, the price reflects the bullet construction loaded into this round.
• The box ships at about 2.05 lb, handy for estimating freight on a bulk order.

Frequently Asked Questions

What game is the 225-gr Barnes Triple-Shock X Boat Tail built for? With .338-378 Weatherby Magnum behind it, this is a dangerous-game load, built for thick-skinned, heavily boned animals like elephant, buffalo, and rhino rather than deer-class game.

Is this ammunition legal in lead-restricted hunting areas like California? Yes, the lead-free bullet meets nontraditional-ammunition requirements in California and similar jurisdictions.

How is the Barnes Triple-Shock X Boat Tail different from a standard cup-and-core bullet? The all-copper hollow point petals peel back on impact for a wide wound channel while the bullet retains close to 100 percent of its weight for deep penetration.

Buy the Weatherby .338-378 Weatherby Magnum 225 gr Barnes Triple-Shock X Boat Tail

When the shot has to count, dependable ammunition is what separates a clean hit from a story about the one that got away. This Barnes Triple-Shock X Boat Tail loading is built to be that dependable round. Order from our Lubbock, Texas gun shop and it ships fast to your door.