Exploring the Legacy of the 30-40 Krag: A Historical Overview and Ammunition Insights”


The 30-40 Krag, a cartridge with a rich history dating back to the late 19th century, holds a unique place in the annals of firearms development. Originally adopted by the United States military in 1892, the 30-40 Krag cartridge was utilized in the Krag-Jørgensen rifle during the Spanish-American War. In this article, we delve into the historical background of the 30-40 Krag cartridge and explore its enduring legacy, with a focus on the various ammunition options available for enthusiasts and collectors 30-40 Krag ammo

Historical Context:

The 30-40 Krag, officially known as the .30-40 Krag-­Jørgensen, was developed by the United States Army in collaboration with the Norwegian engineer Ole Krag and American inventor Captain Hiram Maxim. The cartridge served as the primary ammunition for the Krag-Jørgensen rifle, a bolt-action rifle that marked a departure from the trapdoor Springfield rifles used by the U.S. military.

The 30-40 Krag played a significant role in various conflicts, most notably the Spanish-American War and the Philippine-American War. However, its military service was relatively short-lived, as advancements in firearms technology led to the adoption of new cartridges and rifles.

Ammunition Characteristics:

The 30-40 Krag cartridge is a centerfire, rimmed cartridge with a caliber of .30 inches. It features a relatively moderate powder charge and a round-nose bullet, making it effective for medium-range engagements. The cartridge’s design reflects the military tactics and preferences of its time.

For modern enthusiasts and collectors, finding 30-40 Krag ammunition can be a rewarding endeavor. While military surplus ammunition may be available, it is crucial to consider factors such as storage conditions and age. Alternatively, several reputable manufacturers produce new production 30-40 Krag ammunition, ensuring reliability and consistent performance.

Performance and Ballistics:

The 30-40 Krag cartridge, while no longer a standard military round, remains popular among civilian shooters and hunters. With suitable bullet choices, it is capable of delivering respectable accuracy and energy, making it a viable option for those who appreciate historical firearms.

Bullet weights for the 30-40 Krag typically range from 180 to 220 grains, providing a variety of options for different applications. While it may not match the ballistic performance of more modern cartridges, the 30-40 Krag can still be effective within its intended range.

Collectibility and Restoration:

Beyond its functional aspects, the 30-40 Krag cartridge holds significant appeal for collectors and firearms enthusiasts interested in historical pieces. Original military surplus ammunition and packaging can be sought after, contributing to the authenticity of a historical firearm collection.

Restoration projects involving Krag-Jørgensen rifles often benefit from access to properly manufactured 30-40 Krag ammunition. Collectors and shooters alike appreciate the ability to feed these classic rifles with ammunition that closely replicates the original military specifications.


The 30-40 Krag cartridge stands as a testament to an era when military firearms underwent significant transformations. Its historical significance, combined with its ongoing popularity among collectors and shooters, ensures that the 30-40 Krag remains a fascinating subject within the realm of firearms and ammunition. Whether used for historical reenactments, shooting sports, or as part of a curated collection, the 30-40 Krag continues to captivate enthusiasts with its enduring legacy.

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