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Triple Shot X(R) 458 Caliber (.458') Rifle Bullets - 458 Caliber (0.458'''') 250gr Tsx Flat Base 20/Box
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
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SKU: 749009032
Overview
Built for hunters loading .458 caliber rifles, this 250-grain TSX flat base bullet is intended for demanding big-game applications where deep penetration is a priority. Its lead-free, 100% copper construction is paired with the Triple-Shock design, which uses precisely positioned rings to help relieve firing pressure and reduce copper fouling. Barnes presents it as a premium hunting bullet suited to higher-velocity loads, while noting that it is designed to hold its weight after passing through dense tissue and heavy bone. Sold in a 20-count box, it is a specialized option for hunters who want a controlled, purpose-driven bullet for serious field use.
Why Hunters Choose the Barnes Bullets
Lead-free, 100%
Copper construction
Triple-shock Design
Precision-cut rings
Grooves Help
Relieve firing pressure
Designed Reduce
Copper fouling
Packaged 20
Bullets per box
Key Features
- Lead-free, 100% copper-constructed hunting bullet
- Triple-Shock design with precisely positioned rings
- Grooves help relieve firing pressure
- Designed for higher-velocity loading
- Helps reduce copper fouling
- Packaged 20 bullets per box
Best Used For
- Hunters loading .458 caliber rifles for heavy-bone game and deep penetration needs
- Reloaders seeking a lead-free, 100% copper hunting bullet in 250-grain weight
- Shooters wanting a Triple-Shock design with pressure-relief grooves for higher-velocity loading
- Users prioritizing reduced copper fouling in a premium hunting bullet
- Big-game hunters who want a 20-count box for dedicated field or range use
Specifications
| Accuracy Claim | One of the most accurate hunting bullets you can buy |
|---|---|
| Bullet Caliber | 458 Caliber (0.458'''') |
| Bullet Type | TSX Flat Base |
| Bullet Weight | 250gr |
| Caliber | .458 |
| Design | Triple-Shock |
| Grooves | Series of precisely positioned rings cut into the bullet's body |
| Lead Free | Yes |
| Material | 100% copper |
| Penetration | Extreme penetration |
| Pressure Relief | Yes |
| Quantity | 20/Box |
| Reduced Copper Fouling | Yes |
| Weight Retention | 100% of original weight |
Pros
- Lead-free, 100% copper construction
- Triple-Shock design with precision-cut rings
- Grooves help relieve firing pressure
- Designed to reduce copper fouling
- Packaged 20 bullets per box
Considerations & Trade-offs
- Lead-free, 100% copper construction may not suit hunters who prefer traditional lead-core bullets for their load development or terminal-performance preferences.
- The 250gr weight and .458 caliber make this a specialized option, so it is best matched to rifles and applications already set up for this cartridge and bullet class.
- The Triple-Shock ring design is intended to reduce firing pressure and copper fouling, but it still requires proper load development and verification in the individual rifle.
- Pack size is 20 bullets per box, which may be limiting for shooters planning extensive testing or multiple range sessions.
Suggested Comparisons
- Lead-free hunting bullets
- Copper rifle bullets
- Big-game rifle bullets
- Premium hunting projectiles
Suggested Accessories
- Ammunition storage box
- Bullet puller
- Reloading press
- Case gauge
Frequently Asked Questions
What is the Triple Shot X(R) 458 Caliber bullet made from?
The product data says it is a lead-free, 100% copper-constructed bullet.
How many bullets come in a box?
The product title lists this as a 20/Box item.
What bullet weight is listed for this load?
The product title lists it as 250gr.
Does the product data say what kind of hunting this bullet is suited for?
The source describes it as a premium hunting bullet with extreme penetration, but it does not specify a particular game species or hunting application.
What does the Triple-Shock bullet design do?
According to the source, it uses precisely positioned rings cut into the bullet body to relieve firing pressure, which allows the TSX to be safely loaded to higher velocities while reducing copper fouling.