Quick Facts
| Manufacturer | Bertram |
| Cartridge | .50-140 Sharps |
| Product | New, unprimed brass cartridge cases |
| Case configuration | 3¼-inch Sharps Straight |
| Primary use | Historic and modern single-shot rifles with a verified matching chamber |
| 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 .50-140 Sharps Brass?
- New-production brass for a specialized single-shot rifle cartridge
- Correctly headstamped for easier identification and recordkeeping
- Manufactured by Bertram in Australia
- Imported and supported in the United States by Desert Tech Munitions
Cartridge History
The .50-140 Sharps is the modern commercial designation used for a .50-caliber 3¼-inch straight case offered in heavy reproduction and custom Sharps-pattern rifles.
As with the .45-120, popular accounts often blur modern commercial naming with nineteenth-century Sharps factory history. This product page identifies the case by the current chamber designation and its 3¼-inch length without claiming a disputed original factory lineage.
Understanding the Cartridge Name
Many nineteenth-century American black-powder cartridge names use a caliber-and-charge convention. The first number identifies the nominal bullet caliber, while the second commonly identifies a nominal charge of black powder in grains. This convention is historical terminology, not a modern loading recommendation.
Did You Know?
Under the traditional naming convention, “.50” identifies nominal caliber and “140” refers to a nominal black-powder charge. The name is descriptive history—not recommended load data.
Rifles Commonly Chambered
- Modern Sharps-pattern rifles specifically chambered for .50-140 3¼-inch
- Current C. Sharps Arms rifles offered in the 3¼-inch Sharps Straight chambering
- Custom heavy single-shot rifles with a verified matching chamber
Compatibility warning: Similar cartridge names and rifle models do not establish interchangeability. Verify the complete chamber designation and case length before ordering components.
Legacy
The .50-140 occupies the extreme end of modern Sharps-pattern black powder cartridge chamberings. It appeals to collectors and shooters interested in very large-bore single-shot rifles and requires components matched precisely to the rifle.
Product and Reference Specifications
| Manufacturer | Bertram |
| Condition | New |
| Primed | No |
| Material | Cartridge brass |
| Reloadable | Yes, subject to inspection and correct loading practices |
| Commercial designation | .50-140 Sharps |
| Case configuration | 3¼-inch Sharps Straight |
| Nominal case length | 3.250 in / 82.55 mm |
| Case design | Rimmed, straight |
| Compatibility | Only firearms chambered for the 3¼-inch .50-140 Sharps Straight cartridge |
| Country of manufacture | Australia |
| U.S. distributor | Desert Tech Munitions |
Nominal case length identifies the current commercial chambering. It does not replace inspection of the actual component, chamber, dies, or firearm.
Black Powder Cartridge Shooting Notes
- Inspect every case before use
- Check case length, mouth condition, primer pocket, and flash hole
- Size, expand, chamfer, and deburr as required by the rifle, chamber, bullet, and loading tools
- Maintain consistent case preparation and fouling-control practices
- Use reputable published information for the exact cartridge and firearm
Loading note: Historical cartridge names and nominal powder-charge numbers are not load recipes. Component selection, powder type, bullet design, compression, and safe charge development require cartridge-specific published guidance.
Availability & Production
Bertram manufactures many Sharps and black-powder-era 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.
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 specialty 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.
Does the second number tell me how much powder to load?
No. It reflects a historical nominal black-powder charge used in the cartridge's name. It is not modern loading data.
Can this brass be used with smokeless powder?
Powder selection depends on the exact cartridge, firearm, and authoritative published data. Never infer a smokeless load from a historical black-powder designation.
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, bullet, and loading tools.
Why must I verify case length?
Several cartridges share similar caliber-and-charge names. The complete chamber designation and nominal case length help distinguish cartridges that are not interchangeable.
Sharps & Black Powder Cartridge Collection
Select any cartridge below to view its brass, pricing, and availability.
Reviews
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Fantastic new brass!
Just what I was looking for. Fair price for the scarcity of the caliber. Shipped fast and packaged nicely.