Bertram 577-450 Martini Henry Brass
Bertram
$770.00
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Bertram
Bertram 577-450 Martini Henry Brass
Quick Facts
| Manufacturer | Bertram |
| Cartridge | .577/.450 Martini-Henry |
| Alternate designation | .450/.577 Martini-Henry |
| Product | New, unprimed brass cartridge cases |
| Case type | Rimmed, bottleneck |
| Primary firearm association | Martini-Henry rifles and carbines |
| 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 .577/.450 Martini-Henry Brass?
- New-production brass for a historic or obsolete cartridge
- Manufactured by Bertram in Australia
- Provides an alternative to scarce, aged, or altered original cases
- Imported and supported in the United States by Desert Tech Munitions
Cartridge History
The .577/.450 Martini-Henry is the bottlenecked, rimmed centerfire cartridge associated with British Martini-Henry service rifles and carbines.
Royal Armouries collection records identify Martini-Henry rifles as .450-caliber arms using the .450/.577 Martini-Henry cartridge. The different order of the two numbers reflects naming convention; the product must still be matched to the actual chamber.
Historical Firearms
- Martini-Henry Mk. I, Mk. II, Mk. III, and Mk. IV rifles
- Martini-Henry cavalry, artillery, and other service carbines
- Commercial Martini-action rifles specifically chambered for the .577/.450 cartridge
Compatibility warning: Similar rifle models and similar cartridge names do not establish interchangeability. Verify the precise chambering marked or measured on the firearm.
Collector Notes
Martini-Henry rifles were made in several marks and later converted into other chamberings, including .303 British Martini-Enfield variants. Do not assume every Martini-action rifle uses .577/.450 ammunition.
Product and Reference Specifications
| Manufacturer | Bertram |
| Condition | New |
| Primed | No |
| Material | Cartridge brass |
| Reloadable | Yes, subject to inspection and correct loading practices |
| Product type | New, unprimed cartridge cases |
| Case design | Rimmed, bottleneck |
| Historical caliber description | .450 projectile class on a necked-down .577-class case |
| Primary platform | British Martini-Henry rifles and carbines |
| Dimensional note | No modern C.I.P. or SAAMI dimensions were relied upon for this page; verify chamber and dies |
| Country of manufacture | Australia |
| U.S. distributor | Desert Tech Munitions |
Historical and reference dimensions do not replace inspection of the actual component, chamber, dies, or firearm.
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 chambering and loading-tool compatibility before assembling ammunition
- Use reputable published information appropriate to the exact cartridge and firearm
Antique-firearm note: Age, modification history, proof status, metallurgy, and mechanical condition vary. Have an unfamiliar or historic firearm inspected by a qualified gunsmith before firing.
Availability & Production
Bertram manufactures many historic and obsolete cartridge cases in scheduled production runs rather than continuously. Desert Tech Munitions maintains U.S. inventory when available and offers dealer and OEM programs to qualified buyers.
Still Shooting Today
Newly manufactured brass allows properly inspected historic rifles to remain functional range and collecting pieces rather than relying on increasingly scarce original ammunition.
Why Buy from Desert Tech Munitions?
- Authorized U.S. Bertram distributor
- U.S. inventory and domestic shipping when available
- Direct working relationship with Bertram
- Knowledgeable support for rare and obsolete cartridge brass
- 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.
Can this brass be reloaded?
Yes. Case life depends on chamber dimensions, loading pressure, preparation, sizing practices, and inspection between loadings.
Should new cases be sized before loading?
Inspect every case. Sizing or expanding may be appropriate to establish correct shape and neck tension for the specific chamber and loading tools.
Why is this brass produced intermittently?
Demand for obsolete cartridges is specialized, so production is normally scheduled in batches rather than maintained continuously.
Is every Martini rifle chambered for .577/.450?
No. Martini actions were used and converted for multiple cartridges. Confirm the exact chambering marked or measured on the rifle.
Why do some references write .450/.577?
Royal Armouries uses .450/.577 in some collection records, while .577/.450 is common commercial usage. Both refer to the historic Martini-Henry cartridge naming convention, but the chamber must still be verified.
Historic Military & Obsolete Cartridge Collection
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