Barnes Triple-Shock X (TSX) 338 Cal 185 Grain HPBT Lead-Free Bullets - Box of 50

The Barnes Triple-Shock X (TSX) 338 caliber 185 grain HPBT lead-free bullets are engineered for hunters and reloaders pursuing big game where precision and terminal performance matter. Built from 100 percent copper, these projectiles represent a serious step up for anyone loading their own ammunition and demanding reliable, ethical shot placement on elk, moose, or other large game. A box of 50 gives you plenty to develop loads and hit the range with confidence.

What sets TSX bullets apart is their controlled expansion on impact—they open into four razor-sharp petals designed to cut deep through hide, bone, and vitals. The engineering here is about generating maximum tissue damage while maintaining bullet integrity; you get 100 percent weight retention, meaning nothing sheds during penetration. That translates to reliable energy transfer and reduced risk of pass-throughs that waste terminal energy on game.

Accuracy is built in from the design phase. Most shooters find optimal seating depth between 0.03 to 0.07 inches from the lands—though your specific rifle will dial in best with load development. The HPBT (hollow-point boat-tail) shape minimizes wind drift and supports consistent velocities downrange, especially valuable for the longer shots common in western hunting or when precision matters on a cold, windy day.

If you're handloading for a 338 rifle and want a lead-free option without compromise on terminal ballistics or reliability, TSX bullets have earned their reputation with serious hunters for good reason.

Key Features

• 100 percent copper construction—no lead, environmentally responsible
• Expands into four cutting petals upon impact for consistent, deep wound channels
• Retains 100 percent of bullet weight for reliable penetration through heavy bone and tissue
• HPBT design reduces wind drift and supports accuracy at distance
• Box of 50 for efficient load development and range sessions

Specifications

Frequently Asked Questions

Are these bullets suitable for hunting big game?

Yes. Triple-Shock X bullets are designed for hunters pursuing large game like elk and moose. The controlled expansion and deep penetration make them well-suited for ethical, reliable kills.

Why choose lead-free ammunition?

These bullets are 100 percent copper and contain no lead, making them compliant with lead-free hunting regulations in certain areas and a responsible choice for hunters concerned with environmental impact.

Do I need to do load development for my rifle?

Yes. While the manufacturer recommends seating depth between 0.03 to 0.07 inches from the lands, your specific rifle may require fine-tuning for best accuracy. Always start with published load data and work up carefully.

What does 100 percent weight retention mean?

It means the bullet does not shed material or petals during expansion and penetration. The full 185 grains stays intact through the animal, maximizing energy transfer and the reliability of the shot.