Nosler's AR-15 optimized .22 centerfire — a rebated-rim cartridge that uses the standard AR-15 bolt while fitting a larger case body than .223 Remington. Delivers .22-250-class velocity in an AR-15 platform with a standard bolt face.
Type: Rifle
Introduced: 2017, United States
Parent case: 6.8mm SPC
Standardization: SAAMI
Bullet diameter: 0.224" (5.69 mm)
Case length: 1.76" (44.7 mm)
Overall length: 2.26" (57.4 mm)
Max pressure: 62,000 PSI
Rim type: Rebated
Primer: Small Rifle
Typical twist rate: 1:8
Muzzle velocity: 2950–3350 fps
Muzzle energy: 1064–1369 ft-lbs
Effective range: 400 yd
Common bullet weights: 55, 60, 77 gr
Primary use: Hunting, Target
Production status: Active
Also known as: 22 Nosler
History: Introduced in 2017, the .22 Nosler was designed specifically for AR-15 shooters wanting more velocity than .223/5.56 without changing bolt or lower receiver. The rebated rim matches the AR-15 bolt face; only a barrel change is required to convert a standard AR-15. With a 55-grain bullet at 3,350 fps, the .22 Nosler outperforms 5.56 NATO by approximately 300 fps, delivering noticeably flatter…
Notable firearms: Any AR-15 with .22 Nosler barrel, Nosler Varmageddon AR-15
Similar cartridges: .223 Remington, .224 Valkyrie, .22 ARC