Barnes’s Barnes TSX .375 Caliber 270gr Flat Base Bullet (brand part no. 30489) is a 270-grain TSX Flat Base bullet for reloaders assembling their own .375-caliber rifle cartridges ammunition. This TSX is built on a flat base rather than a boat tail, still using Barnes’ all-copper Triple-Shock construction for dangerous-game-capable penetration.

Key Specifications

• Bullet diameter is .375-inch, sized for .375-caliber rifle cartridges.
• Weighs a nominal 270 grains.
• Bullet style is TSX Flat Base.
• Sold boxed in quantities of 50 per box.
• Construction is 100% copper with no fragmentation and maximum weight retention.
• Barnes cites 28% deeper penetration than comparable lead-core bullets of the same weight.
• Shank rings act as pressure relief valves, improving accuracy, reducing pressure spikes, and cutting copper fouling.
• As a component bullet, it ships without cases, powder, or primers, ready to load into your own brass.
• 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 .375-caliber rifle cartridges rounds.

What is this bullet best suited for? It’s a big-game and dangerous-game hunting bullet, built for maximum penetration on large, heavy-boned animals.

Why a flat base instead of a boat tail on this TSX? A flat base keeps the bullet’s construction simple and strong for close-to-mid-range dangerous-game hunting, where extreme long-range ballistics matter less than penetration and reliability.

Buy the Barnes TSX .375 Caliber 270gr Flat Base Bullet

Order the Barnes TSX .375 Caliber 270gr Flat Base 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.