Bertram 458 Winchester Magnum
Bertram
$58.30 - $240.90
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Bertram
Bertram 458 Winchester Magnum
Quick Facts
| Manufacturer | Bertram |
| Cartridge | .458 Winchester Magnum |
| Product | New, unprimed brass cartridge cases |
| Collection | Safari & Dangerous Game |
| Case type | Belted, rimless, bottleneck |
| Standards / compatibility | SAAMI- and C.I.P.-recognized cartridge; verify the complete chamber designation. |
| Country of manufacture | Australia |
| U.S. distributor | Desert Tech Munitions |
Important: This listing is for new, unprimed brass cartridge cases only. It is not loaded ammunition and contains no primer, powder, or projectile.
Why Choose Bertram .458 Winchester Magnum Brass?
- New-production brass for one of the world’s best-known dangerous-game cartridges
- Correctly headstamped for identification and load records
- Manufactured by Bertram in Australia
- Imported and supported in the United States by Desert Tech Munitions
Cartridge Overview
The .458 Winchester Magnum is a classic belted dangerous-game cartridge developed for magazine rifles. It remains widely used in Africa and elsewhere for large and dangerous game where dependable feeding and heavy-bullet performance are essential.
Compatibility and Rifle Platforms
- Bolt-action rifles chambered for .458 Winchester Magnum
- Single-shot and controlled-feed dangerous-game rifles with the exact chamber designation
- Factory and custom rifles built to recognized .458 Winchester Magnum specifications
Compatibility warning: Do not confuse .458 Winchester Magnum with .458 Lott, .458 Winchester Short Magnum, .450 Watts, or other .458-caliber cartridges. Match the brass to the exact chamber and loading tools.
Best Suited For
- Dangerous-game hunters
- Owners of classic and modern .458 Winchester Magnum rifles
- Handloaders assembling dependable hunting and practice ammunition
- Dealers and OEM loaders requiring new-production component brass
Product and Reference Specifications
| Manufacturer | Bertram |
| Condition | New |
| Primed | No |
| Material | Cartridge brass |
| Case type | Belted, rimless, bottleneck |
| Standards / compatibility note | SAAMI- and C.I.P.-recognized; verify the exact chamber and loading data. |
| Country of manufacture | Australia |
| U.S. distributor | Desert Tech Munitions |
Case Preparation Before Loading
- Inspect every case before use
- Check the mouth, body, primer pocket, and flash hole
- Size, expand, chamfer, deburr, and measure as appropriate
- Confirm case length and neck condition before charging
- Use authoritative published loading data for the exact cartridge and firearm
Availability & Production
Bertram manufactures many specialty and dangerous-game cartridge cases in scheduled production runs. Desert Tech Munitions maintains U.S. inventory when available and supports qualified dealer and OEM buyers.
Why Buy from Desert Tech Munitions?
- Authorized U.S. Bertram distributor
- U.S. inventory and domestic shipping when available
- Direct working relationship with Bertram
- Dealer and OEM programs for qualified buyers
Frequently Asked Questions
Is this loaded ammunition?
No. This listing is for new, unprimed brass cartridge cases only.
Will this brass fit a .458 Lott rifle?
Do not assume interchangeability. Use brass and loading data appropriate to the exact chamber designation.
Should new cases be sized before loading?
Inspect every case. Sizing or expanding may be appropriate for the rifle, chamber, bullet, and loading tools.
