Barnes’s Barnes TSX .338 Caliber 185gr Boat Tail Bullet (brand part no. 30408) is a 185-grain TSX Boat Tail bullet for reloaders assembling their own .338-caliber rifle cartridges ammunition. The TSX (Triple-Shock X) is Barnes’ original all-copper hunting bullet, using shank rings cut into the bullet body to control pressure and improve accuracy without any lead core.

Key Specifications

• Bullet diameter is .338-inch, sized for .338-caliber rifle cartridges.
• Weighs a nominal 185 grains.
• Bullet style is TSX Boat Tail.
• Sold boxed in quantities of 50 per box.
• Construction is 100% copper with no lead core, so it won’t fragment or fowl the bore with lead the way a jacketed bullet can.
• Barnes cites 28% deeper penetration than comparable lead-core bullets thanks to the copper’s weight retention.
• Shank rings act as relief valves that reduce pressure spikes and copper fouling while improving accuracy.
• This is a component bullet for handloading, not loaded ammunition, so you’ll still need your own cases, powder, and primers.
• Always cross-check current load data from the bullet manufacturer or a trusted reloading manual before working up a charge, since published data changes over time.

Frequently Asked Questions

Is this loaded ammunition? No, it’s a component bullet only; you’ll need your own cases, powder, and primers to load finished .338-caliber rifle cartridges rounds.

What is this bullet best suited for? It’s a big-game hunting bullet, built for deep, controlled penetration on medium to large game.

Why does the TSX have rings cut into the bullet’s shank? The rings act as relief valves as the bullet travels down the bore, reducing pressure spikes, cutting copper fouling, and improving accuracy.

Buy the Barnes TSX .338 Caliber 185gr Boat Tail Bullet

Order the Barnes TSX .338 Caliber 185gr Boat Tail Bullet from our Lubbock, Texas gun shop for fast, reliable shipping. Order from Barnes‘s reloading bullets selection and our Lubbock, Texas team can help you match the right component to your load.