Place of origin United States
Case type Rebated rim, bottlenecked
Bullet diameter 5.70 mm (.2245 in)
Neck diameter 6.5 mm (.255 in)
Shoulder diameter 10.2 mm (.400 in)
Base diameter 10.69 mm (.4207 in)
Rim diameter 9.6 mm (.378 in)
Rim thickness 1.1 mm (.045 in)
Case length 44.7 mm (1.760 in)
Overall length 57.4 mm (2.260 in)
Rifling twist 1 in 8 inches (203 mm)
Maximum pressure (SAAMI) 380 MPa (55,000 psi)
Bullet mass/type Velocity Energy
55 gr (3.6 g) 3,500 ft/s (1,100 m/s) 1,496 ft⋅lbf (2,028 J)
The .22 Nosler is a .22-caliber (.224 in; 5.6 mm), rebated-rim centerfire rifle cartridge designed by Nosler. The caliber is a SAAMI approved and standardized cartridge.
In January 2017 Nosler introduced the caliber. It is the fifth cartridge designed by Nosler. It is claimed that the .22 Nosler delivers 25% more case capacity and is nearly 90 m/s (300 ft/s) faster than a .223 Remington/ 5.56 NATO. The .22 Nosler is designed to use the existing bolt face of an AR-15, and conversions to this caliber can be accomplished with a simple barrel swap. The shoulder is set back slightly compared to the 5.56 cartridge to prevent accidentally chambering a 5.56 cartridge in a. The case diameter and taper resemble those of the 6.8mm Remington SPC; so Nosler recommends using a magazine designed for that cartridge. While similar to the 6.8 SPC in some regards, there is no parent case and the caliber cannot be formed from 6.8 SPC brass.