Quick Facts
| Manufacturer | Bertram |
| Cartridge | .43 Mauser |
| Alternate designation | 11×60mmR Mauser / 11.15×60mmR Mauser |
| Product | New, unprimed brass cartridge cases |
| Case type | Rimmed, bottleneck |
| Primary firearm association | Mauser Model 1871 and Model 1871/84 |
| 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 .43 Mauser 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 .43 Mauser is the large, rimmed centerfire cartridge associated with the German Mauser Model 1871 single-shot rifle and the later Model 1871/84 repeating rifle.
Royal Armouries collection records document both the Model 1871 and Model 1871/84 as 11 mm Mauser military rifles. Surviving rifles are now historic arms, and modern newly manufactured brass allows qualified handloaders to keep properly inspected examples in service.
Historical Firearms
- Mauser Model 1871 infantry and specialist-pattern rifles
- Mauser Model 1871/84 tubular-magazine repeating rifles
- Commercial sporting rifles built or converted around the Model 1871 action
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
The Model 1871 established the Mauser name in military bolt-action rifles. Because rifles may have seen more than a century of service, alteration, or repair, cartridge compatibility should be confirmed from the firearm itself rather than assumed from appearance alone.
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 | 11 mm / .43 class |
| Firearm association | Mauser Model 1871 and 1871/84 |
| Dimensional note | Verify chamber and loading-tool compatibility; no modern C.I.P. or SAAMI table was relied upon for this page |
| 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.
Will this fit every rifle described as an 11 mm Mauser?
No. Similar metric and .43-caliber cartridges are not automatically interchangeable. Verify the exact chambering, and obtain a chamber cast when markings or rifle history are uncertain.
Is the Model 1871/84 chambered for the same cartridge family?
Royal Armouries identifies surviving Model 1871/84 rifles as 11 mm Mauser arms, but individual rifle condition and chambering must still be verified.
Historic Military & Obsolete Cartridge Collection
Select any cartridge below to view its brass, pricing, and availability.