Barnes Triple-Shock X-Bullets in .458 caliber, 350 grain (Barnes part no. 30617), are made from 100 percent copper and sold across a range of calibers and diameters, each built to expand on impact and produce four razor-sharp petals with deep cutting capability. For hunters who want a one-shot kill on dangerous or heavy game, the bullet’s design lets it penetrate dense bone and tissue while retaining 100 percent of its original weight. Barnes notes that the best accuracy typically comes from seating the bullet between 0.03 and 0.07 inches off the lands, depending on the specific rifle, making these ready-to-load bullets for serious big-game work.

Key Specifications

• Bullet weight is 350 grains in .458 caliber.
• Bore diameter is 0.458 inch, sized for standard .458-caliber rifle barrels.
• Machined from 100 percent copper, part of the Triple-Shock X-Bullet line.
• Expands into four razor-sharp petals for deep cutting capability.
• Retains 100 percent of original weight after expansion.
• Sold in a box of 20 bullets.
• Box ships at approximately 1.1 lbs.
• Penetrates dense bone and tissue for reliable follow-through on heavy game.
• Best accuracy typically comes from seating 0.03 to 0.07 inches off the lands, per Barnes.

Frequently Asked Questions

What does the Triple-Shock design do on impact? It expands into four razor-sharp petals with deep cutting capability while retaining 100 percent of the bullet’s original weight.

What seating depth does Barnes recommend? Typically between 0.03 and 0.07 inches off the lands, depending on the specific rifle.

What game is this bullet intended for? Dangerous or heavy big game, where deep penetration and weight retention matter most.

Buy the Barnes TSX .458 Caliber 350gr Rifle Bullets

Dangerous-game hunters loading .458 caliber will get serious penetration and weight retention from the Triple-Shock X-Bullet design. Order it from our Lubbock, Texas gun shop for fast, insured direct shipping, and browse Barnes‘s complete reloading bullets lineup for other calibers.