.257 Roberts Ammo

The .257 Roberts ammunition category appeals to those who value classic cartridges that offer a blend of low recoil, versatility, and effectiveness for medium game hunting. Often referred to as the “Bob,” the .257 Roberts was introduced in the 1930s, based on the 7mm Mauser case, and has since garnered a dedicated following among hunters and shooters for its balanced performance. This selection features premium ammunition from respected manufacturers, suitable for hunters seeking an efficient and capable round for deer, antelope, and similar-sized game.

Intended Use: The .257 Roberts is particularly suited for hunting medium-sized game, providing enough power for ethical kills with minimal meat damage. Its accuracy and moderate recoil also make it an excellent choice for younger or recoil-sensitive shooters. In addition to hunting, the .257 Roberts is appreciated for recreational shooting and has a place in historical cartridge collections.

Caliber/Size: As a medium-power cartridge, the .257 Roberts fires a .257 inch (6.53mm) bullet, offering an effective compromise between the smaller .22 calibers and the larger .30 calibers. It’s known for being gentle on the shoulder while still delivering sufficient downrange energy.

Performance Characteristics: The .257 Roberts is celebrated for its flat trajectory and excellent accuracy, capable of reaching out to distances of 300 yards and beyond with precision. Its performance is characterized by effective terminal ballistics suitable for a range of medium game animals, ensuring quick, humane harvests.

Material and Construction: .257 Roberts ammunition is manufactured with high-quality components, featuring brass casings and a selection of bullet designs. Options range from soft point and hollow point for hunting, ensuring effective expansion on game, to match-grade bullets for those seeking optimal accuracy in target shooting scenarios.

Brands and Manufacturers: This category includes products from established manufacturers such as Hornady, Nosler, and Remington, who continue to support the .257 Roberts with high-quality ammunition options. These brands are committed to maintaining the legacy of this venerable cartridge, providing hunters and shooters with reliable rounds that honor its storied past.

A Brief History: The .257 Roberts was developed by gun writer and wildcatter Ned Roberts, who experimented with necking down the 7mm Mauser case to accept .257 caliber bullets. Its official adoption by Remington in the early 1930s helped solidify its place in the hunting world, where it has remained a favored choice for those who appreciate its mild manners and effectiveness.


  1. What is the effective range of a .257 Roberts? The .257 Roberts is effective for hunting within a range of up to 300 yards, providing excellent accuracy and terminal performance for medium-sized game.
  2. Can the .257 Roberts be used for larger game? While primarily optimized for medium game, the .257 Roberts can be used for larger game species such as elk, particularly with premium bullets designed for deeper penetration, assuming proper shot placement and ethical hunting distances.
  3. How does the .257 Roberts compare to other hunting cartridges? The .257 Roberts offers a unique combination of low recoil, flat trajectory, and versatility, making it an attractive option for hunters seeking a cartridge that is effective yet pleasant to shoot. It compares favorably with more modern cartridges in terms of game-taking ability, particularly for hunters who value shot placement and efficiency.

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