Barnes TSX Bullets .458 cal .458" 450 gr FB 20/ct
Barnes TSX bullets in .458 caliber deliver the controlled expansion and deep penetration that large-game hunters need for ethical, effective shots. These 450-grain solid copper projectiles are engineered to create four sharp-edged petals on impact while retaining 100% of their original weight—critical performance when you're pursuing elk, moose, or African game at distance. Built from pure copper construction, TSX bullets resist barrel fouling and deliver consistent ballistics across your reloading runs, making them a reliable choice for precision rifle cartridges like the .458 Winchester Magnum or other .458-based builds.
What sets the TSX apart is the combination of controlled expansion and weight retention. Those four cutting petals do serious work through bone and tissue, creating a wound channel that doesn't rely on explosive fragmentation. For hunters who reload their own ammunition, that reliability translates to confidence in the field. The flat-base design seats easily, and Barnes recommends seating depth between 0.03 and 0.07 inches depending on your specific rifle—a range that gives you tuning room to dial in accuracy for your platform.
Each box contains 20 bullets, giving you plenty for load development and a full season in the field. Whether you're working up loads for a new rifle or restocking your reloading bench, these copper solids represent serious stopping power in a premium bullet that hunters trust for one-shot performance.
Key Features
- 100% copper construction resists barrel fouling and promotes consistent velocities
- Four razor-sharp cutting petals expand reliably while retaining full bullet weight
- Deep penetration through bone and dense tissue for ethical large-game hunting
- Flat-base design for straightforward seating and loading consistency
- Recommended seating depth range of 0.03–0.07 inches allows fine-tuning for your rifle
Specifications
| Caliber | .458 |
| Bullet Diameter | .458" |
| Weight | 450 grains |
| Style | Flat Base (FB) |
| Material | 100% Copper |
| Count per Box | 20 |
Frequently Asked Questions
What firearms and calibers are these bullets for?
These .458-caliber, 450-grain bullets are designed for rifles chambered in .458 Winchester Magnum and other .458-based cartridges. Confirm compatibility with your specific rifle before loading.
How much seating depth adjustment does the TSX allow?
Barnes recommends seating depth between 0.03 and 0.07 inches, depending on your individual rifle. This range gives you room to fine-tune cartridge overall length and accuracy during load development.
Will these bullets work for hunting large game?
Yes. The controlled expansion, weight retention, and bone-penetrating design make TSX bullets suitable for large-game hunting applications where deep, reliable performance is essential.
Are these bullets loaded ammunition or components?
These are reloading components—unprimed, unfired bullets only. You'll need to assemble them with cases, primers, and powder according to published load data.

