Nominal bullet diameter of the .257 Roberts is .257 inches (6.5 mm). The .257 Roberts uses the same caliber bullets as .250 Savage or the more powerful .25-06 Remington.

Jun 5, 2025 · Rarely chambered today, there are still a lot of .257 Roberts rifles in use, adequate factory loads and 90 years of loading data. It’s still fast, flat-shooting, light-kicking, and versatile.

rican big game hunting. Pushed out of the limelight when the 243 Winchester and 6mm (244) Remington came along, the 257 is still an excellent cartridge. Although a bit light for larger big …

Oct 23, 2025 · Explore the 257 Roberts cartridge, its history, specifications, and applications for hunting and shooting enthusiasts.

The .257 Roberts was designed in the 1920s when wildcatter Ned Roberts started to do experiments on the .257 caliber cartridges. After some work he decided to go with a 7x57 …

The .257 Roberts was the premier combination varmint/deer cartridge until the .243 Winchester and .244 Remington were introduced in 1955. These cartridges were highly touted by Warren …

The .257 Roberts is a low recoiling, mild powered cartridge. In a short action, it has the potential for a suitable youth rifle but without care towards optimizing hand loads, can lack the power …

In 1934, Remington standardized the cartridge as the .257 Roberts and began chambering it in their Model 30 bolt-action rifle, officially bringing it to the mass market. Its pedigree as a …

Jul 19, 2013 · Often overshadowed by the 6 mms, the .257 Roberts is a .25-caliber round that started as a wildcat, but is now being reintroduced in the Model 70.

The .257 Roberts is renowned for its versatility and mild recoil, making it a popular choice for hunting medium game such as deer and antelope. Its performance is comparable to the .243 …