Bertram 404 Jeffery .423" 400gr Copper-Jacketed Round Nose Soft Point Bullet

Quick Facts

Important: This listing is for component bullets/projectiles only. It is not loaded ammunition and does not include cartridge cases, primers, or powder.

Why Choose This Bertram Bullet?

• Specialty projectile from Bertram for classic and hard-to-source sporting calibers
• Clearly identified diameter and bullet weight for component selection
• Copper-jacketed round nose soft point (RN SP)
• Available in the United States from Desert Tech Munitions, an authorized Bertram distributor
• Dealer and OEM programs available for qualified buyers

Projectile Overview

The .404 Jeffery is one of the best-known cartridges associated with .423-inch, 400-grain projectiles. Bertram’s copper-jacketed round nose soft point follows that classic diameter-and-weight combination for shooters maintaining traditional sporting rifles and ammunition.

Cartridge & Rifle Compatibility

Designed around classic .423-inch applications such as the .404 Jeffery; may also suit other cartridges specifically specified for .423-inch bullets when supported by authoritative data.

Compatibility warning: The cartridge name “.404” does not describe the bullet diameter. .404 Jeffery uses approximately .423-inch bullets. Verify the actual projectile diameter required by the rifle and loading data.

Best Suited For

Owners of .404 Jeffery rifles; users of compatible .423-inch sporting cartridges; specialty handloaders, dealers, and OEM ammunition loaders.

Product & Reference Specifications

Component Selection Before Loading

• Confirm the rifle's exact chamber designation and required bullet diameter.
• Inspect every projectile before use and verify it is the intended diameter and weight.
• Confirm bullet length, seating depth, cartridge overall length, magazine clearance, and firearm function as applicable.
• For double rifles, use components appropriate to the rifle's regulation and established ammunition specifications.
• Use authoritative, published loading data for the exact cartridge, firearm, and component combination.

Availability & Production

Bertram produces many specialty projectiles for classic and uncommon sporting cartridges. Availability can vary by production run. Desert Tech Munitions maintains U.S. inventory when available and supports qualified dealer and OEM customers.

Why Buy from Desert Tech Munitions?

• Authorized U.S. Bertram distributor
• Domestic inventory and shipping when available
• Direct working relationship with Bertram
• Support for rare and specialty cartridge components
• Dealer and OEM programs for qualified buyers

Frequently Asked Questions

Is this loaded ammunition?

No. This product is a component bullet/projectile only.

Does the caliber name alone guarantee compatibility?

No. Verify the exact bullet diameter, chamber designation, firearm specifications, and published component data before use.

Can I use this bullet in any cartridge that has a similar caliber name?

No. Similar cartridge names can use different bullet diameters and different dimensional standards. Match the projectile to the exact cartridge and rifle.

Where can I find other Bertram components?

Browse the Projectiles / Bullets category and the Bertram Brass collection for additional specialty components.