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Triple Shot X(R) 458 Caliber (.458') Rifle Bullets - 458 Caliber (0.458'''') 350gr Tsx Flat Base 20/Box
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$23.99
List Price: $28.99
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SKU: 749009073
Overview
Built for hunters loading a .458 caliber rifle, this 350-grain TSX flat base bullet is intended for demanding big-game applications where deep penetration is a priority. Its lead-free, 100% copper construction and Triple-Shock design with precision-cut rings are described as helping manage firing pressure while reducing copper fouling. Barnes presents it as a premium hunting bullet suited to situations involving dense tissue and heavy bone. It is packaged 20 bullets per box for hunters who want a specialized projectile for serious field use.
Why Hunters Choose the Barnes Bullets
Lead-free, 100%
Copper construction
Triple-shock Design
Pressure-relief rings
Grooves Help
Reduce copper fouling
Can Be
Safely loaded to higher velocities
20 Bullets
Per box for hunting use
Key Features
- Lead-free, 100% copper-constructed hunting bullet
- Triple-Shock design with precisely positioned rings
- Grooves are designed to relieve firing pressure
- Can be safely loaded to higher velocities
- Designed to reduce copper fouling
- Packaged 20 bullets per box
Best Used For
- Hunters loading .458 caliber rifles for deep-penetration big-game applications
- Users wanting a lead-free, 100% copper bullet for heavy-bone impact scenarios
- Reloaders seeking a 350-grain TSX flat base bullet in 20-count packaging
- Shooters prioritizing reduced copper fouling and pressure-relief groove design
- Experienced hunters needing a premium bullet for dense tissue and tough game
Specifications
| Accuracy Claim | One of the most accurate hunting bullets you can buy |
|---|---|
| Bullet Diameter | 0.458'''' |
| Bullet Type | TSX Flat Base |
| Bullet Weight | 350gr |
| Caliber | 458 Caliber (.458') |
| Construction | 100% copper |
| Copper Fouling Reduction | Yes |
| Lead Free | Yes |
| Penetration | Extreme penetration |
| Pressure Reduction | Yes |
| Quantity | 20/Box |
| Ringsgrooves | Precisely positioned rings cut into the bullet's body |
| Triple Shock Design | Yes |
| Weight Retention | 100% of original weight |
Pros
- Lead-free, 100% copper construction
- Triple-Shock design with pressure-relief rings
- Grooves help reduce copper fouling
- Can be safely loaded to higher velocities
- 20 bullets per box for hunting use
Considerations & Trade-offs
- This is a lead-free, all-copper bullet, so it may not suit buyers specifically looking for traditional lead-core construction.
- The Triple-Shock ring design is intended to reduce firing pressure and copper fouling, but it is still a specialized hunting bullet rather than a general-purpose option.
- At 350gr, this is a heavy .458 caliber bullet, so it is best matched to rifles and loads built around that specific application.
- The product is sold as a 20-count box, which may be a consideration for hunters who prefer larger pack sizes for load development or extended use.
Suggested Comparisons
- Large-caliber rifle bullets
- Lead-free hunting bullets
- Copper hunting bullets
- Premium big-game bullet types
Suggested Accessories
- Ammunition storage box
- Reloading press
- Bullet puller
- Caliber-specific reloading dies
Frequently Asked Questions
What caliber and bullet weight is this Barnes TSX load component?
It is listed as a .458 caliber bullet in 350 grain weight, sold in a 20-count box.
Is this bullet lead-free?
Yes. The product description states that it is a lead-free, 100% copper-constructed bullet.
What does the Triple-Shock (TSX) design refer to?
The description says the TSX design uses a series of precisely positioned rings cut into the bullet body. These grooves are described as relieving firing pressure and reducing copper fouling.
Does the product description say what game this bullet is intended for?
No specific game species are listed in the provided data. The description only identifies it as a premium hunting bullet.
What performance claims are provided in the source data?
The source says it is designed for extreme penetration and typically retains 100% of its original weight after passing through dense tissue and heavy bone. It also says the bullet is one of the most accurate hunting bullets you can buy, but that is a source claim rather than a verified test result.