The .26 Nosler (6.5×66mmRB) is a rebated-rim centerfire rifle cartridge designed by Nosler and first announced in November 2013. It is the first cartridge designed by Nosler.


The name 26 Nosler refers to the first two digits in the caliber (0.264") of the bullets that the cartridge fires and the name of the company which created it.

The 26 Nosler is designed as a modern 6.5mm cartridge, using recent advances in firearm technology to attain exceptionally high muzzle velocities (up to 3,400 ft/s (1,040 m/s)) and maintain an extremely flat trajectory. The overall cartridge length of 3.340 inches (84.8 mm) is the same as that of the .30-06 Springfield, allowing the use of widely available standard-length actions.




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