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Barnes Bullets

Barnes Triple Shock X 303 Caliber (0.311'''') Bullets - 303 Caliber (0.311'''') 150gr Tsx Flat Base 50/Box

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Lead-free, 100%

Copper-constructed hunting bullet

303 Caliber

(.311") 150-grain TSX flat base

Triple-shock Design

Precisely positioned body rings

Grooves Help

Relieve firing pressure

Designed Reduce

Copper fouling

$36.99
List Price: $44.99
You Save: $8.00 (18%)
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SKU: 100032975

Overview

Built for hunters who want a lead-free option in .303 caliber, this 150-grain TSX flat base bullet is designed around deep penetration and controlled performance on game. Its 100% copper construction and ringed bullet body are intended to help manage firing pressure while reducing copper fouling. Barnes positions it as a premium hunting bullet suited to demanding field use where dense tissue and heavy bone may be encountered. Packaged 50 per box, it offers a practical choice for hunters loading for serious big-game applications.

Why Hunters Choose the Barnes Bullets

Lead-free, 100%

Copper construction

Triple-shock Ring

Design helps relieve firing pressure

Grooves Are

Designed to reduce copper fouling

150-grain Flat-base

Configuration

Packaged 50

Bullets per box

Key Features

  • Lead-free, 100% copper-constructed hunting bullet
  • 303 caliber (.311") 150-grain TSX flat base
  • Triple-Shock design with precisely positioned body rings
  • Grooves help relieve firing pressure
  • Designed to reduce copper fouling
  • Packaged 50 bullets per box

Best Used For

  • Hunters seeking a lead-free .303 caliber bullet for traditional hunting setups
  • Users who want a 150gr bullet designed for deep penetration through dense tissue and bone
  • Hunters loading for higher velocities while using a bullet with pressure-relief grooves
  • Serious shooters looking for a premium hunting bullet in a 50-count box

Specifications

Accuracy ClaimOne of the most accurate hunting bullets you can buy
Bullet TypeTSX Flat Base
Bullet Weight150gr
Caliber303 Caliber (0.311'''')
Construction Material100% copper
Copper Fouling ReductionYes
DesignTriple-Shock
GroovesringsSeries of precisely positioned rings cut into the bullet's body
Lead FreeYes
PenetrationExtreme penetration
Pressure ReliefYes
Quantity50/Box
Weight Retention100% of original weight

Pros

  • Lead-free, 100% copper construction
  • Triple-Shock ring design helps relieve firing pressure
  • Grooves are designed to reduce copper fouling
  • 150-grain flat-base configuration
  • Packaged 50 bullets per box

Considerations & Trade-offs

  • Lead-free, all-copper construction may require load development to match a specific rifle and hunting setup.
  • The Triple-Shock ring design is intended to reduce copper fouling, but it does not eliminate the need for routine barrel maintenance.
  • This is a premium hunting bullet, so it may be more than needed for shooters who do not specifically want a lead-free option.
  • Performance claims in the description are tied to hunting use; suitability still depends on proper cartridge, load, and firearm compatibility.

Suggested Comparisons

  • Lead-free hunting bullets
  • Copper hunting bullets
  • .303 caliber bullets
  • Premium big-game bullets

Suggested Accessories

  • Reloading dies
  • Bullet puller
  • Powder scale
  • Reloading manual

Frequently Asked Questions

What caliber and bullet weight is this Barnes TSX load component?

It is listed as 303 caliber (0.311") and 150 grains.

How many bullets are included in the box?

The product is sold as a 50-count box.

Is this bullet lead-free?

Yes. The source description states that it is a lead-free, 100% copper-constructed bullet.

What is the Triple-Shock X design intended to do?

The description says the TSX design uses precisely positioned rings cut into the bullet body to relieve firing pressure and reduce copper fouling.

Does the product description specify what game it is best suited for?

No. The provided data describes it as a premium hunting bullet with extreme penetration, but it does not specify particular game animals.